Best Frequency Adjusting

PreSonus Studio 1810c USB-C Audio Interface 18-in/8-out USB-C Audio Interface with 4 Xmax Preamps

• ...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....

Analog Voltage to PWM Signal Converter, 0-5V/0-10V Analog Input Voltage to 0-100% PWM Signal 2KHZ-20KHZ Converter Module,for PWM Motor Speed Control Interface Circuit Activity

• 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 Cinetic Big Ball Animal Upright Vacuum Cleaner Purple/Iron

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

Akg K72 Closed-Back Wired Studio Headphones

• Precisely balanced response provides reference-monitor accuracy.
• Professional drivers 40mm drivers for extended 16Hz - 20kHz frequency response.
• Over-ear design and lightweight construction for exceptional comfort.
• Self-adjusting headband ensures perfect fit.

Sirio Antenna Sirio New Vector 4000 27-28.5 Tunable Base Antenna

• 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.

AKG K92 Closed-Back Studio Headphones w/Holder and Extension Cable

Wasp Repellent

Samson SR950 Professional Studio Reference Headphones

• 50mm drivers for exceptional reproduction and wide dynamic range.
• 10Hz-25kHz frequency response, 32ohm impedance.
• Self-adjusting headband for a secure, comfortable fit.
• 1/8-inch to 1/4-inch gold plated adapter included.

3M Health Care MMM 2160 Littman Master Cardiology Stethoscope, Black Tubing, 27\ Length

• 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.

3M Littmann Stethoscope, Master Cardiology, Black Tube, Black Chestpiece, 27 inch, 2161

• 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..

3M Littmann Stethoscope Master Cardiology Black Tube Smoke Chestpiece 27 inch 2176

• 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..

3M Littmann Stethoscope Master Cardiology Black Tube Brass Chestpiece 27 inch 2175

• 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..

3M Littmann Lightweight II S.E Stethoscope Black Tube 28 Inch 2450

• Lightest weight of all Littmann adult stethoscopes at just 118 grams..
• Dual-sided chestpiece provides versatility of both a tunable diaphragm and open bell..
• Teardrop-shaped chestpiece for easier positioning under blood pressure cuffs and around bandages..
• Tunable diaphragm: Hear high or low frequency sounds by slightly adjusting pressure on the chestpiece..
• Soft-sealing eartips provide an excellent acoustic seal and comfortable fit..