Reviews Frequency

OCESTORE Crystal Oscillator Tester Frequency Counter Tester Meter 1Hz-50MHz Cymometer Measurement Tester Module LED DIY Kit

  • 【OPTIMAL PERFORMANCE】OCESTORE premium upgrade Frequency Counter Tester Meter based on PICmicrocontroller that can measure frequency of 1 Hz to 50 MHz,designed to measure the oscillation frequency of the most crystal oscillators..
  • 【HIGH QUALITY】OCESTORE premium Frequency Counter Tester Meter is made of high quality material which can use for a long time.Programmable addition and subtraction frequency settings, used to measure radio transceivers and other equipment..
  • 【SUPER IMPORTATNT】with crystal oscillator measurement function and programmable addition and subtraction frequency settings, five-digit digital tube display, convenient and intuitive, all use in-line components, simple circuit, easy to make..
  • 【OPTIMAL RELIABILITY】Power supply : USB 5V or DC 5-12V.
  • Crystal Test Range: about 4MHz-48MHz.Automatic range conversion, no need for manual switching.
  • All in-line components, easy to install and debug..
  • 【PACKAGE & SERVICE】Package Include: 1 Pcs x Crystal Oscillator Frequency Counter .Any question Pls fell free to contact us, we will reply you within 24H.And we offer a 12 month warranty..
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FC-3000P Ham Radio CB Frequency Counter 27Mhz-3000Mhz - High Sensitivity with CTCCSS DCS Decoder for The VHF & UHF - CB Continuous Carrier Signal, Walkie-Talkies, DMR Radio Transceivers

  • ✔️ IDENTIFYING FREQUENCY - The frequency meter measures frequency parameters of the continuous carrier signal walkie-talkies , with signal strength indicator..
  • ✔️ PORTABLE FREQUENCY COUNTER - Counting continuous wave signal comes from Two-way Radio. VHF & UHF frequency measurement, useful for the CB amateur Ham Radio..
  • ✔️ FREQUENCY COUNTER METER RANGE - CB, HAm Radio, DMR frequency range 100Mhz-3000Mhz. Build-in DCS CTCSS Decoder Low PPM crystal time base used to achieve high accuracy measurement.
  • ✔️ EASY TO OPERATE - User friendly controlled with four buttons. The DMR radio frequency counter is compact and handy when needed..
  • ✔️ 100% MONEY BACK GUARANTEE 2 YEARS WARRANTY ensures this will quickly become your favorite no-risk purchase..
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(2) JBL JRX225 Dual 15\ Professional 4000w Passive DJ/PA Speakers 4 Ohm JRX 225

  • Features: JBI JRX225 Dual 15" 2000 Watt Passive DJ/PA Speaker. Dual JBI low frequency drivers with a 64 mm (2.5 in) diameter edgewound ribbon voice coil for greater efficiency and power handling. JBI 2414H-C 25 mm (1 in) polymer diaphragm compression driver.
  • Advanced network topology crossover design. High-voltage capacitors and inductors with massive cores and heavy gauge wire. Progressive Transition high frequency waveguide. 19 mm (.75 in) MDF (Medium Density Fiberboard) enclosure.
  • SonicGuard protects the high frequency driver from excess power without interrupting the performance. Non-resonant, all-steel handles. 18-gauge hexagon perforated, steel grille Dual-angle pole-mount socket allows the speaker to tilt 10. Details: Power Rating : 500 W / 2000 W.
  • Frequency Range (-10 dB) : 42 Hz - 18 kHz. Frequency Response (3 dB) : 62 Hz - 13 kHz. Sensitivity (1w/1m) : 100 dB SPL. Nominal Impedance : 4 ohms. Recommended Amplifier Power : 500 W to 1000 W into 4 ohms. Maximum SPL : 133 dB. Nominal Dispersion : 90 x 50. Crossover Frequency : 2.2 kHz.
  • Dimensions (H x W x D) : 1092 mm x 464 mm x 432 mm (43 in x 18.3 in x 17 in). Weight : 42.6 kg (94 lb). High Frequency Driver : JBI 2414H-C , 1" exit compression driver mounted on Progressive Transition Waveguide. Low....
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High Frequency Facial Wand MQ Portable Handheld High Frequency Machine

  • PACKAGE INCLUDE: The portable high frequency machine includes an insulated handle, English manual, 4Pcs electrode attachments (tongue tube, bend tube,....
  • INSTRUCTIONS: Just insert the desired glass electrode into the high frequency wand, gently push in the electrode and it should just snap into place.....
  • EFFICIENT: You can choose the different electrodes to your skin, mushroom tube for broad area.
  • FOUR METHODS: High frequency facial beauty machine methods can be chosen which are indirect high frequency, direct high frequency..
  • AFTER SALES SERVICE: If you are not completely satisfied with the MQ's high frequency facial machin, our friendly customer service team 24 hours are....
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XCFDP 15MHz DDS Signal Generator Counter,High Precision Dual-Channel Function Generator Arbitrary Waveform Frequency Meter 2.4’’ Screen 200MSa/s 15MHz

  • 【EASY TO OPERATE】Convenient operation interface, superior technical indicators and humanized graphic style. Its sine wave frequency output can....
  • 【SIGNAL STABILITY】The signal generator adopts large-scale FPGA integrated circuit and high-speed MCU processor, and the internal circuit adopts....
  • 【FREQUENCY METER FUNCTION】It supports scanning output from low frequency to high frequency or from high frequency to low frequency. The scanning....
  • 【HIGH PRECISION】This signal generator adopts dual-channel DDS signal and TTL electric level output to generate accurate, stable, low-distortion....
  • 【WIDE APPLICATION】The signal generator has excellent amplitude-frequency characteristics, small and beautiful appearance, and intuitive control....
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Dual Band Radio, Selectable Narrow Broadband VHF 136174 MHZ UHF 400520 MHz PTT ID Wireless Walkie Talkie Function Aviation 108136 MHz for Adults US Plug

  • Portable Design: The walkie talkie is small and light, gray body, simple and atmospheric, suitable for adults, can be used in various restaurants, shopping malls, security and other ..
  • Dual PTT: PTT 1 transmits the A segment frequency, and PTT 2 transmits the B segment frequency. Narrowband broadband selectable..
  • Multi Information Display: With a 1.4 inch screen, it can clearly display the channel number, frequency, channel frequency, channel name, etc..
  • Multifunctional: Battery voltage display, keypad lock and unlock, dual frequency, voice delay, FM radio, scan, PTT ID function..
  • Frequency Range: UHF 400‑520MHz, VHF 136‑174MHZ, aviation frequency band 108‑136MHz. 10W 5W high and low power settings..
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(2) JBL Pro JRX212 12\ 2000w Professional Passive PA/DJ Speakers 8 Ohm JRX 212

  • Features: JBI Pro JRX212 12" 1000 Watt 8 Ohm Passive PA/DJ Speaker. JBI 12 in low frequency driver with a 64 mm (2.5 in) diameter edge wound ribbon voice coil. JBI 2414H-C 25 mm (1 in) polymer diaphragm compression driver. Advanced network topology crossover design.
  • High-voltage capacitors and inductors with massive cores and heavy gauge wire. Progressive Transition high frequency waveguide. 19 mm (.75 in) MDF (Medium Density Fiberboard) enclosure. SonicGuard protects the high frequency driver from excess power without interrupting the performance..
  • Non-resonant, all-steel handles. 18-gauge hexagon perforated, steel grille Dual-angle pole-mount socket allows the speaker to tilt 10. Specifications: Power Rating : 250 W / 1000 W. Frequency Range (-10 dB) : 60 Hz - 20 kHz. Frequency Response (3 dB) : 80 Hz - 18 kHz.
  • Sensitivity (@1m) : 98 dB SPL (1w/1m). Nominal Impedance : 8 ohms. Recommended Amplifier Power : 250 W to 500 W into 8 ohms. Maximum SPL : 128 dB. Nominal Dispersion : 90 x 50. Crossover Frequency : 2.1 kHz. Dimensions (H x W x D) : 584 mm x 399 mm x 325 mm (23 in x 15.7 in x 12.8 in).
  • Weight : 19.5 kg (43 lb). High Frequency Driver : JBI 2414H-C 1" exit compression driver mounted on Progressive Transition Waveguide. Low Frequency Driver : JBI M....
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KZ EDA Dynamic Driver Earbuds Combos,3 in 1 in Ear Monitor Wired Phone Earphones Headphones, HiFi Music IEM Headsets with Removable Cord Without Mic

  • THREE PAIRS OF EARBUDS – KZ EDA dynamic driver earphones combos set is tuned by KZ accoustic team many times for the outstanding sound quality. The price of one set of KZ EDA in ear headphones is equal to three pairs of earphones and three music styles to meet your listening needs. The low-frequency dynamic performance is excellent, the mid-high frequency is upgraded, and the three-frequency connection is smooth..
  • THE GOLD EARBUDS WITH EXTRA BASSY SOUND – Focus on optimizing the mid-lows, making the bass strong and elastic. Deep dive, strong and powerful drum beats, excellent low frequency transient performance, suitable for DJ and songs with heavy metal rhythm. The magnetic gap of 0.15MM brings stronger output performance, lower distortion rate, and more realistic restoration of sound..
  • THE SILVER EARBUDS WITH BALANCED SOUND – Referring to the Harman curve, the three-frequency is balanced and powerful, the vocals are clear and sweet, the low-frequency dives and the high-frequency is transparent, and the sound texture is strong, suitable for pop music and other genres. Customized 0.035MM diameter high tension voice coil wire makes the vibration frequency more stable and efficient..
  • TRANSLUCENT CYAN WITH HIGH-RESOLUTION SOUND – On the basis of ex....
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Garrett ACE APEX with Viper Searchcoil Spring Special 2022

  • Complete Flexibility - Choose from powerful single frequencies or select a simultaneous multi-frequency mode to achieve excellent detection on all targets in all soils or sands..
  • 8 Channels per Frequency - 8 independent frequency shifts for each single and multi-frequency - 48 different frequency settings..
  • Six Detection Modes + Pinpoint - Zero, Coins, US Coins, Jewelry, Relics, and Custom.
  • Rechargeable Battery - Built-in rechargeable lithium-ion battery provides up to approximately 15 hours of use, depending on the setting..
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Rockville RWM-4US Quad Wireless UHF 4 Microphone System w/Adjustable Frequency

  • Rockville RWM-4US Quad Wireless UHF 4 Microphone System w/Adjustable Frequency. 20 Adjustable Unique Frequencies on each microphone ensures interference free operation. Easy frequency switching by simply hitting the button on the microphone. (4) Metal handheld microphones with digital display. Professional 19 metal rack mount receiver with LCD display. Illuminated rotary knobs..
  • One button frequency switching allows you to hit the button on any of the 4 microphones and the channel will change on that microphone and auto-sync with the receiver. The display on the microphone shows channel, frequency, battery life. The display on the receiver shows RF signal strength, AF signal strength, frequency channel, battery life of each handheld mic. Operating Range: 300 400(indoor), 250 350(outdoor)..
  • Each mic uses different channel groups so that you will not get interference from one microphone to the other (There are 80 total different channels on this system 20 unique frequencies per mic). Ergonomic metal microphones are extremely high quality and have a nice weight and feel to it. Individual XLR outputs for each microphone to send each microphone to their own mixer channel. XLR and mix output to send all 4 mics to one mixer channel..
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Rockville REQ231 Dual 31 Band 1/3 Octave Graphic Equalizer+3 Way Mono Crossover

  • ...z effective equalization range. Constant Q filters. Selectable 6dB or 12dB cut or boost range.
  • Output level LEDs (-10 to +17 dB). Bypass switch with status LED. Ground lift switch. Balanced XLR input/output. Subwoofer out. Channels: 2 (stereo). Connectors: XLR balanced inputs and outputs. Bands: 31 per channel. Frequency Centers: 20 Hz, 25 Hz, 31.5 Hz, 40 Hz, 50 Hz, 63 Hz, 80 Hz, 100 Hz, 125 Hz, 160 Hz, 200 Hz, 250 Hz, 315 Hz, 400 Hz, 500 Hz, 630 Hz, 800 Hz, 1 kHz, 1.25 kHz, 1.5 kHz, 2 kHz, 2.5 kHz, 3.15 kHz, 4 kHz, 5 kHz, 6.3 kHz, 8 kHz, 10 kHz, 12.5 kHz, 16 kHz, 20 kHz.
  • Control Range: Selectable +/-12dB 0r +/-6dB. Input Impedance: 50k ohms. Output Impedance: 600 ohms. Maximum Output Level: +21dB. Level Control: +/- 10 dB. Signal to Noise: >93 dB. Distortion: 0.005%. Roll-off filters: 18dB/octave, Butterworth. Power Consumption: 15 watts. Weight Unpacked: 7.00 lbs. Weight Packed: 9 lbs. Width Packed: 5.87". Height Packed: 20. 5". Depth Packed: 9.62". Features of RX230: RockvilIe RX230 2-way Stereo / 3-way Mono rack mountable crossover.
  • Ability to mix 2 channels output. 24dB/Octave filters. Mute switches. Channel Gain Control: 0 to +12 dB. Low Frequency Level Control: -to +6 dB. High Frequency Level Control: -to +6 dB. Low Frequency to High Frequen....
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Garrett Hobby ATX Metal Detector with Pro Pointer at and Waterproof Headphones

  • Complete Flexibility - Choose from powerful single frequencies or select a simultaneous multi-frequency mode to achieve excellent detection on all targets in all soils or sands..
  • 8 Channels per Frequency - 8 independent frequency shifts for each single and multi-frequency - 48 different frequency settings..
  • Six Detection Modes + Pinpoint - Zero, Coins, US Coins, Jewelry, Relics, and Custom..
  • Rechargeable Battery - Built-in rechargeable lithium-ion battery provides up to approximately 15 hours of use, depending on the setting..
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Shure SLXD4D Dual Channel Wireless Receiver (Transmitters Sold Separately)

  • WIRELESS FREQUENCY BAND SELECtION: Before purchasing, please ensure that the wireless frequency band you select works in your area (refer to Shure website for details > search Shure Wireless Frequency Finder)..
  • COMPONENT ONLY: For this SLXD4 receiver to work, please make sure it matches the frequency band (style) on your SLX-D digital wireless transmitter..
  • WHAT'S IN THE BOX: (1) SLXD4D dual-channel receiver with antenna and rackmount accessories.
  • DIGITAL WIRELESS TECHNOLOGY: Digital predictive switching diversity. 44 MHz tuning bandwidth (region dependent). 32 available channels per frequency band (region dependent). Up to 10 compatible systems per 6MHz TV band.
  • 12 systems per 8 MHz band. RF Scan and IR Sync to quickly find an open frequency and link the transmitter to a SLX-D receiver. Easy pairing of transmitters and receivers over IR scan and sync..
  • SOUND QUALITY: Crystal clear 24-bit / 48 kHz digital audio. Extended 20 Hz to 20 kHz frequency response (microphone dependent) for natural and clear sound. Stable digital RF signal transmission. 120 dB dynamic range - excellent for vocals & acoustic and wind instruments..
  • APPLICATIONS: A variety of compatible microphone/instrument cable choices guarantees the ri....
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