1、Stable Transmission: Using unlimited 2.4GHz transmission frequency band, signal transmission is faster and more stable. 2、Transmission Range: Wireless microphone has a transmission range of 20m/21.9yd, which can be applied to live broadcasts, talks, video shooting and other situations. 3、High Sound Quality: With built in AI intelligent noise reduction chip, guaranteeing a clear voice and vivid sound quality, for a satisfying using experience. 4、Wide Application: Adopt 3.5mm jack for audio cable, compatible with mobile phone, camera, motion camera. 5、Large Battery, Small Size: With built in large capacity battery, up to 7 hours of battery life, The size of wireless video mic is small, you can hold it in hands or clip on collar, easy to use. Item Type: Wireless Lavalier Microphone System Material: Plastic Application: for Interview, Video Taking, Live Product Size: Receiver: Approx.50x44.5x15mm/2.0x1.8x0.6in Transmitter: Approx.50x44.5x15mm/2.0x1.8x0.6in Weight: Approx.340g/12.0oz Transmission Frequency Band: 2400MHz To 2483.5MHz Audio Frequency Response: 100Hz~16KHz±3dB Dynamic Range: 93dB SNR: 93dB Maximum Input Sound Pressure :97 DB SPL Pairing Mode: Automatic Transmission Range: 20 M (With Obstacles),40 M (Open Area) Operating Temperature: -5℃~+50℃ Transmitter Specifications Transmission Frequency Band: 2400MHz To 2483.5MHz Modulation Type: FM/DIGITAL FSK Transmitted Power: 10dBM Antenna Mode: Built in F Type Antenna Directivity: Omnidirectional Battery: Built in Lithium Battery 380mAh Charging: Type-C Battery Life: >7h Output Interface: 3.5mm TRS Operating Temperature :-5℃~+50℃ Net Weight: 35g/1.2oz Receiver Specifications Transmission Frequency Band: 2400MHz To 2483.5MHz Modulation Type: FM/DIGITAL FSK Acceptance Sensitivity: -86dbm Antenna Mode: Built in F Type Antenna Battery: Built in Lithium Battery 380mAh Charging: Type-C Battery Life: >7h Output Interface: 3.5mm TRS Operating Temperature :-5℃~+50℃ Net Weight: 35g/1.2oz 1 x Receiver 2 x Transmitter 1 x Charge Cable 2 x Windproof Cover 1 x 3.5mm TRRS Audio Cable 1 x 3.5mm TRS Audio Cable 1 x Manual