Reviews Frequency Adjusting- BestItemr.com

LEJOSTOL Multi-function Magic Wrench Universal Adjustable Wrenches 1045 Steel, Pipe Wrench Set 10.5 and 15-Inch,2-Piece

【High-hardness】US standard 1045 high-carbon steel precision forging, high-frequency hardening treatment, high hardness..
【Self-Adjusting Spanner】The connecting shaft adopts self-adjusting design, which is convenient for one-handed operation, simple and practical..
【Adjusting Opening】Opening from 14-30mm for 10.5-inch model, Opening from 30-60mm for the 15-inch model..
【Match Different Nuts】This pipe wrench works well with Prism, square, diamond nut, etc., 14 ~ 60 mm specifications can be applied..
【Spiked Tail】The hardened tail made of carbon steel can be used for prying or chiseling. It is a good assistant for home travel..

Provides reliable acoustic performance for taking blood pressure readings and making limited physical assessments of adult patients.
Tunable diaphragm responds with a simple pressure change to capture low and high frequency sounds.
Tear drop shape for easy fit under blood pressure cuff.
Anatomically designed headset is angled to meet the path of the ear canal.
Nonchill rim and diaphragm provide welcome patient comfort.
Color might be little darker than the image.
Tunable diaphragm: Hear high or low frequency sounds by slightly adjusting pressure on the chestpiece.

-UNIQUE TECHNOLOGY – Tunable diaphragm technology – a 3M invention – lets clinicians hear different frequency sounds by simply adjusting the pressure on the chestpiece as well as developing diagnostic skills..
-HIGHLY ACCURATE DIAGNOSE – Listen to real heart and lung sounds to recognize different conditions, hold the chestpiece with light pressure to hear low frequency sounds.
press a little more to hear higher frequency sounds. This time-saving feature allows the healthcare provider to focus on the patient..
-SPECIAL DESIGN – Double-sided Chestpiece designed for easier grip and maneuvering, the non-chill rim provides patient comfort. Headset tension is easily adjusted for head size and comfort by squeezing together or pulling apart the eartubes. Snap-tight, soft-sealing eartips conform to individual ears for an excellent acoustic seal and comfortable fit. Eartips snap firmly onto the ends of the eartubes and, for safety, require a significant effort to remove..
-ENVIRONMENT PROTECTION – to play its part in the protection of human health and the environment, the tubing does not contain phthalate plasticizers..
-LIFETIME WARRANTY – If you are not 100% satisfied with your purchase, we will refund your payment 1....

...sonus Eris E3. 5 3. 5" Powered Studio Monitors Speakers with Acoustic Tuning + Pair of Rockville RVSM1 Heavy Duty Near-Field Studio Monitor Stands w/ Adjustable Height for Use in any Studio Environment.
Pair PreSonus Eris E3. 5 3. 5" Powered Studio Monitors Speakers with Acoustic Tuning. 3. 5-inch (89 mm) Kevlar low-frequency transducer. 1-inch (25 mm), ultra-low-mass, silk-dome, high-frequency transducer. Rear-firing acoustic port for superior bass-frequency reproduction. Optimized, resonance-suppressing internal bracing. High- and low-frequency tuning controls. Front-panel Volume control for speakers and headphone amplifier..
50 watt (25W/side), Class AB bi-amplification. RF interference, output current limiting, over-temperature, transient, and subsonic protection. Amplifier “soft start” feature eliminates popping on power-up. Internal power supply with IEC connector. Power switch with on/off LED. Balanced ¼-inch TRS, unbalanced 1/8-inch stereo, and RCA inputs. Integrated stereo headphone amplifier with front-panel 1/8-inch output. Protection: . RF Interference. Output-Current Limiting. Over-Temperature. Turn-On/Off.
Specifications: Inputs: (1) Stereo 1/8" , (2) Balanced 1/4" TRS, (2) Unbalanced RCA . Frequency Response: 80 Hz - 20 kHz. Crossove....

Voltage to PWM Signal Converter Module: This module can convert 0-5V or 0-10V analog input voltage into 0-100% PWM signal..
Wide Application: This module is widely used for PWM motor speed control interface circuit, instrumentation AD interface conversion, and other applications that need convert voltage to PWM signal..
PWM Signal Frequency Range: The PWM signal frequency range is 2KHZ-20KHZ, maximum is 20KHZ, default minimum is 2KHZ,Hyuduo is committed to providing customers with high-quality products and thoughtful service..
Setable Output Frequency: The default function of this module is converting 0-10V into 0-100% 2KHZ PWM signal, but the output frequency can be set by adjusting potentiometer as needed,stable and reliable performance, practical, easy to operate and use, has a long service life..
Two Kinds of PWM Signal: There are two kinds of PWM signal, PNP-PWM output and NPN-PWM output. The PNP-PWM output is only 5V level, NPN-PWM output is 5V and 24V level,If you have any problem,please contact us, we will strive to provide you with satisfactory service!.

Dyson Ball technology. 35 high frequency oscillating Dyson Cinetic tips capture the microscopic dust.

Base station antenna omnidirectional tunable by whip length adjusting high power handling capability.
Type: 3/4 coaxial J-pole Frequency range: tunable from 27 to 28.5 MHz.
Bandwidth @ SWR 2: 1400 KHz SWR @ res. freq.: 1.2 Max.

Hear high or low frequency sounds by slightly adjusting pressure on the chest piece.
Two sound paths in one tube eliminates the rubbing noise of traditional double tubes.
Headset is easily adjusted for individual fit and comfort.

Outstanding acoustics: The highest in Littmann mechanical stethoscopes..
Tunable diaphragm: Hear high or low frequency sounds by slightly adjusting pressure on the chestpiece..
Dual-lumen tubing: Two sound paths in one tube eliminates the rubbing noise of traditional double tubes..
Headset is easily adjusted for individual fit and comfort. Angled eartubes align with ear canals..