Comica BoomX-D UC2 wireless microphone set None Comica BoomX-D UC2 BoomX-D UC2 is a modern wireless microphone system designed for journalists , vloggers and filmmakers. It offers complete solutions to record interviews, speeches directly to your Android smartphone or tablet. & Nbsp; The BoomX-D UC2 consists of two ultra-compact transmitters with its own built-in circular microphone and separate tie-clip microphone and a dual receiver. & nbsp; & nbsp; The devices have built-in rechargeable batteries that allow for continuous operation up to 5 hours. The transmitter has a built-in microphone and a 3.5mm microphone input to which you can connect a lavender microphone. As a microphone, the transmitter can be attached to your clothes or even held in your hand as a handheld microphone. The receiver and transmitter are factory paired and are Plug-in-Play. Both devices have a high-quality display where we can read information about battery life, signal strength, sound level and mono / stereo configuration. The wireless system operates in the 2.4 GHz frequency band. < p> & nbsp; The kit includes: 2 x transmitter (TX) receiver (RX) < p> 2 x lavalier microphone 2 x windscreen charging cable & nbsp; Specification: & nbsp; Transmitter (TX) - Wireless band - 2400 ~ 2483 , 5 MHz - Transmission power - 10dBm - Approximate RF sensitivity - -86dBm - Antenna - PCB antenna - Formula Polar - Omni-directional - Frequency response - 80 Hz ~ 20 kHz - Audio delay - & lt; 20 ms - External microphone input interface - 3.5 mm TRS - Battery - Built-in 330mAh 3.7V Li-ion battery. - Battery life - 5 hours - Net weight - 29g < / p> - Dimension - 39 x 22 x 55 mm - operating temperature - 0 ~ 50 & nbsp; Receiver (RX) - Wireless band - 2400 ~ 2483.5 MHz - Output power - 10mW - Antenna - PCB antenna - Audio output amplitude - 0dB ~ 12dB - Audio delay - & lt; 20ms - Audio output interface - 3.5mm TRS - Battery - Built-in 330mAh 3.7V Li-ion battery - Battery life - 5 hours - Net weight - 19g - Dimensions - 33 x 13 x 70 mm - temperature working - 0 ~ 50