Adesso® 1080P HD USB Webcam with Built-in Microphone

Features: Dual signal UHF high band Polar Pattern: Dynamic Cardioids Digital sound processing Outputs: Individual XLR outputs per channel, one 1/4" mixed output Frequency range: 614MHz-698MHz Frequency stability: ±0.005% Modulation mode: FM Maximum deviation range: ±25kHz with limiting compressor Frequency Response: 40Hz-20kHz Signal to noise ratio: 100dB Total harmonic distortion: Audio dynamic range: 90dB Service area: 200 ft Comes with two handheld microphones VU meter LCD display with microphone frequency Available in Five different sets allowing you to use up to 10 ...

Play all of your favorite music and movies with the Logitech® S150 2.0 USB speakers with digital sound. Their simple USB connectivity means no need for batteries or AC cables. The sleek, stylish design complements laptops in the office and on the go. Built-in volume control and mute button for quick, easy volume adjustments, plus an LED power indicator. When better-than-basic is what you want, these digital audio speakers will deliver what you need: acoustic quality stereo sound. To keep sound quality up without putting a hole in your pocketbook, try the S150 2.0 USB digital speakers.

Features: Single Headset & Lapel UHF microphone system Transducer type: Dynamic Polar Pattern: Unidirection Service area: >75 feet Silence circuit cuts static noise if microphones are off or out of range Auto mute circuit reduces popping noise Adjustable gain control Maximum deviation range: ±45kHz Output: 1/4" Frequency Response: 40Hz-15kHz ±3dB Signal to noise ratio: >80 dB Modulation mode: FM Audio dynamic range: >98dB

Logitech H390 USB Headset with Noise-Cancelling Mic H390 USB Headset features an adjustable, padded headband and plush ear pads for outstanding comfort. Digitally enhanced USB audio provides superior sound clarity. Noise-canceling microphone blocks unwanted sounds even in a noisy room. Convenient in-line volume and mute controls offer easy access. Rotating microphone boom swings out of the way when not in use. Headset frequency response is 20 Hz-20 kHz. Microphone frequency response is 100 Hz-10 kHz. Features: Input Impedance: 32 Ohms Sensitivity (headphone): 94dBV/Pa +/- 3 dB Sensitivity ...

Features: 4 audio projection modes: voice talking, siren alert, record, USB port 6 built-in LED lights / 22,000-24,000 lumens Requires 4 pcs x size C batteries (Not included) Adjustable volume control Folding handle for easy storage For indoor / outdoor use Wrist strap included Technical Specifications: Power output: 20 Watts Max. Audio projection range: up to 1,500 feet Megaphone Dimensions: 6" x 9"