Item Type: Lapel MicrophoneMaterial: ABSTransmission Distance: 20mSignal to Noise: 64dBmFrequency Response: 20Hz to 20KHzEndurance: 8 HoursBattery Type: Lithium BatteryReceiver Battery Capacity: 130mAh ( Included)Microphone Battery Capacity: 50mAh ( Included)Package List1 x Lapel Microphone1 x Receiver1 x Charging Cable1 x Instruction Manual1AUTO PAIRING: Lavalier lapel microphone supports auto pairing, automatic and quick connection on power on, easy to control. 2INTELLIGENT NOISE REDUCTION: Lapel microphone supports intelligent noise reduction and provides professional level recording output, plug and play, no APP required. 3LARGE CAPACITY BATTERY: Wireless lavalier microphone has a large capacity rechargeable lithium battery, supports work while charging, lasting life. 43.5MM CONNECTOR: Clip on microphone has 3.5mm connector, suitable for live sound card, cell phone, speaker, camera. 5APPLICABLE SCENARIOS: Lavalier microphone is suitable for webcasting, video vlog shooting, program interview, interview recording, video teaching.