The BOYA BY-XM6-K2, a 2.4GHz adaptive frequency hopping wireless microphone system, consists of two transmitter, one receiver, as well as a charging case. It’s a perfect sound capturing, meanwhile delivering solution for two-person vlog, YouTube video, live streaming, interview, recording, etc. •2.4GHz wireless transmission technology •Ideal choice for video content creation, vlog, live streaming, and more •Providing excellent audio quality at broadcast level •Ultra compact clip on transmitter and dual channel receiver •With easy to operate OLED display screen •Real time headphone monitoring function •Working range up to 100m •High quality built-in microphone •Equipped with lavalier microphone •Large capacity charging box, compact design, lightweight and portable Specifications: •TX transmitter: •Transmission method: 2.4GHz digital frequency band •Signal modulation: GFSK •Operating distance (unobstructed); Up to 100 meters •RF output power: ＜ 10mW •Polarity mode: omnidirectional •Frequency response: 35Hz-18KHz •Maximum sound pressure level: •Integrated microphone: 120dB SPL •Lavalier microphone: 110dB SPL •Sensitivity: •Internal microphone: -39dB •Lavalier microphone: -39dB •Signal to noise ratio:>84dB •Power supply method: built-in lithium battery/USB-C DC 5V/charging box contact charging •Built in battery life: approximately 7 hours (3.7V 400mAh) •Antenna: PIFA antenna •Audio input source: 3.5mm TRS microphone/linear input, or built-in microphone •Weight: approximately 32g •Size: 62.1x31.6x16.5mm •Working temperature: -10 ℃ to 50 ℃ •Storage temperature: -20 ℃ to+55 ℃ •RX receiver: •Transmission method: 2.4GHz digital frequency band •Signal modulation: GFSK •Operating distance (unobstructed): up to 100 meters •Audio output port: •3.5mm headphone jack •3.5mm TRS output hole •Audio output level: -60 dBV to -20dBV •Power supply method: built-in lithium battery/USB-C DC 5V/charging box contact charging •Built in battery life: approximately 7 hours (3.7V 400mAh) •Antenna: PIFA antenna •Weight: approximately 32g •Size: 62.1x31.6x16.5mm •Working temperature: -10 ℃ to 50 ℃ •Storage temperature: -20 ℃ to+55 ℃ •Charging box: •Power supply method: USB-C DC 5V/1.5A •Charging box battery capacity: 2000mAh •Charging time of the charging box: 3 hours •Weight: 152g •Size: 96x96.8x35.6mm •Working temperature: -10 ℃~50 ℃ •Storage temperature: -20 ℃~+55 ℃ Package included: •1 x Receiver •2 x Transmitters •1 x 3.5mm TRRS Cable for Smartphone •1 x 3.5mm TRS Cable for Cameras •1 x USB-C Charging Cable •2 x Fur Windshields •2 x Lavalier Microphones •1 x Charging Box •1 x English User Manual •Other items not include