Reviews Radio Frequency Wireless Home- BestItemr.com

Bluetooth Transmitter/Receiver for TV, Home Stereo with FM Radio, MP3 Player & Karaoke Mic 6.3mm Jack

Build Wireless Audio Hub for Home TV / Stereo without Jumble of Cables: This Bluetooth 5.1 adapter has RCA & 3.5mm stereo connectivity, FM radio, wired/wireless Karaoke microphone 6.5mm 1/4” jack, TF/USB disk MP3 player.
Professional quality sound: Integrated DSP for accurate audio frequency, master tune & Hi-Fi true stereo.
control knobs for bass, treble and volume controls to gain the excellent acoustics effect.
Upgraded Bluetooth 5.1 chip 2-in-1 Tx/Rx with better compatibility & stability.
Long-distance Bluetooth transmission up to 30m/100ft thanks to external 2.4G antenna.
Upgraded NFC Bluetooth pairing for easy Bluetooth setup and connecting.
FM radio: Built-in digital FM radio receiver with external 40cm FM telescopic antenna.
Search & save radio channels with one button. Now you have a tabletop radio for news, music, weather or emergency announcing from local radio stations, frequency band 87.5-108MHz.
6.5mm 1/4” jack for wired Karaoke microphone with anti-howling design, volume control, mixing, and original suppression.
MP3 player via TF card & USB disk. Now you can set up a simple KTV at home and relax yourself by singing songs.
Remote Control allows easy operation 10-15m away.
Soft-light LED Display indicates working status clearly.

Optical - wireless - Radio frequency - black - USB - computer - scroll wheel - 2 buttons) - symmetrical.
Radio frequency wireless connectivity offers more freedom for people who want to control their computers from a distance.
Built-in 2-Buttons and scrolling wheel for fast page navigation and better control over browsers' Tabs.
Pointing device wireless technology: radio frequency.
Note : In case of Wireless mouse, the USB receiver will be provided inside or along with the mouse.

"THE DISCOVER IT - iPROTECT DD1216 - 3 BAND RF ANTI-SPY COUNTER SURVEILLANCE RADIO FREQUENCY BUG DETECTOR HAS GIVEN ME PIECE OF MIND!" - Did you know that countless families, businessmen & women and corporations have relied upon the Discover It - iProtect 3 Band RF Anti-Spy Counter Surveillance Radio Frequency Bug Detector to ensure their MAXIMUM level of privacy and security? Get ready to experience your greatest level of personal privacy yet!.
THREE BANDS OF DETECTION - Did you know that the detection frequency range of the Discover It - iProtect 3 Band RF Anti-Spy Counter Surveillance Detector has been split into 3 parts, each displayed by a separate bargraph: "VHF/UHF 50-700 MHz", "Mobile and wireless 700 MHz – 3 GHz" and "Microwave and wireless 3-12 GHz". Allowing the operator to understand what type of signal is detected, to detect several signals simultaneously and to sustain the ability of detection near sources of interference.
HAVE AMAZING PROFESSIONAL 5 STAR RESULTS WITHOUT QUESTIONING THE DETECTION RESULTS - Do you want to have amazing 5 STAR detection results each and every time you scan your home, car, office & conference board room or hotel room? Its never been easier to sweep and detect hidden bugs, hidden cameras or malicious RF sign....

Interface: 2.4 GHz Radio Frequency Wireless Technology.
Features: Ergonomic Design, DPI Switch, Auto Sleep Mode, Power Switch & (2) Internet Navigation Buttons.
Adjustable DPI: 3 Levels (800, 1200, 1600).
Note : In case of Wireless mouse, the USB receiver will be provided inside or along with the mouse.

NRF24L01 is a single chip radio transceiver for 2.4 - 2.5 GHz ISM band, low operating voltage : 1.9 ~ 3.6V low voltage operation..
Built-in hardware CRC error detection, Multipoint communication address control, built-in 2.4Ghz antenna, add wireless capability to your projects..
125 Communications channels frequency points, multi-point communication and frequency hopping to meet the communication needs..
Applications: wireless peripherals, remote control systems such as RC vehicles and consumer remote electronics, wireless voice transmission such as VoIP, wireless sensor networks, wireless networks, home and commercial automation. Compatible with Arduino and Raspberry Pi..
Maximum operating speeds up to 2Mbps, GFSK modulation efficiency, Anti-interference ability, Particularly suitable for industrial control applications, for easy implementation into designs without additional hardware..

...The sensitivity can be changed by altering the potentiometer，Effective detection of 30㎡ range area。 (increase sensitivity, widen detection range, reduce sensitivity, shorten detection range, and identify radio wave sources faster and more accurate.).
【Multiple Detection Modes】more detection modes: 1. radio frequency wireless signal detection 2. UG magnetic field signal detection 3.LED signal display detection.4. flashlight auxiliary lighting，Radio frequency detector can detect radio waves, 2G, 3G, 4G mobile signal, SIM card bug. Frequency detection range 1Mhz – 6.5Ghz..
【Durable and Lightweight】Light weight, small size, suitable for various places, such as hotels, conference rooms, bathrooms, locker rooms, residences, offices, examination places.Built-in rechargeable battery, after charging can be standby time can up to 30 days, no need to replace the battery.More convenient to use and carry..
【Easy to Use】Although the product has many functions, but the use of the method is very simple, only through the “mode button” and “sensitivity adjustment button” can be switched between a variety of functions, even a novice can quickly master the use of the method.Krevi.

Optical - wireless - Radio frequency - Blue - USB 2.0 - 1000 dpi - computer, notebook - scroll wheel - symmetrical.
Radio frequency wireless connectivity helps reduce the clutter of wires.
1000 DPI optical LED for smoother movement and hassle-free performance.
The symmetrical shape lets left as well as right handers use mouse with ease.
Strong, consistent wireless connection from distances up to 10-meters (33-feet) away..
Note : In case of Wireless mouse, the USB receiver will be provided inside or along with the mouse.

Wireless FM transmitter compatible with iPad, iPhone, iPod, and smartphones, MP3 players and any audio device with a 3.5mm audio jack.
Powered by rechargeable built-in lithium battery - no drain on the battery of your audio device.
High fidelity stereo with full frequency range of 100Hz to 15,000Hz for full bodied wireless sound reproduction. Can also be used for phone calls through the vehicle sound system..
Bright LCD displays FM frequency with backlight for low light viewing. Includes soft touch key design and holds last frequency in memory even when powered off..
Transmits to FM radio frequencies from 87.5MHz to 108.0MHz with PLL to ensure clearest reception even in large cities with many active radio stations..