Avermedia Wireless Teacher Microphone AW315 Dual Mic with Smart Pair. Microphone x 2, Receiver x 1.

Support Dual Microphone Hands-free System AVerMic AW315 provides reliable operation with its dual-antenna to two wireless microphones. With 2.4 GHz wireless technology, noise and speaker buzz reduction, this hands-free design not only gives teacher total freedom to interact with students, it also delivers natural voice in great clarity and stability. Protect your voice from strain Speaking all day in your “teaching voice' can put undue strain on your voice, and can cause long term injury. Utilizing a microphone enables you to speak naturally where your students can still clearly hear you, reducing the potential for voice strain and vocal issues. •Dual microphone •Wireless auto pairing •Wall-mountable •Mic volume notification sound •Volume level memorization •Line-out and Mic-out switch •Built-in ground noise isolator •External antenna design •Digital signal processing with howling suppressor and audio-in mixer Package Contents Microphone*2, Receiver*1, Adaptor*2, Plug*2, Micro USB Cable*2, 3.5mm Cable*2, 3.5 to 6.3mm Cable*1, Layard*2, Buckle*2, Quickly Guide*1 and External Single Ear Microphone*1, Specs: Transmission: 2.4GHz RF Frequency Range: 2.4~2.483 GHz Compatibility: Yes Operating range (Line of sight): 15-20 meters (50-65 feet) Audio Frequency Response: 100Hz ~8kHz Microphone Sensitivity: -39dB ref. 1K@1V Microphone S/N: >59Db Microphone Distortion: ≦0.5% Latency (ms): 28ms Microphone Battery Life: 350mAh Lithium Rechargeable (8 hours) Microphone Fully Charging Time: 2-3 hours Microphone Input: 5V 200mA Working Environment: 0~40°C (32-104°F) Power Supply: 5V/2A Microphone (TX) I/O: Micro USB Audio Input Receiver (RX) I/O: Micro USB, Audio Input, Audio Output(3.5/6.3mm), External Antenna, Mode Switch Wall Mount: Yes Size/Weight: Microphone: 30 x 80 x 25mm/32g (1.18 x 3.15 x 0.98in/ 1.13oz) Receiver: 135 x 71.16 x 23.6mm/146g(5.31 x 2.80 x 0.93in/ 5.15oz) Compatibility Yes (AW313 Microphone)