Brand Name: Vandlion Compatible device: Action Cameras Compatible device: Phones High-concerned chemical: None Model: K8 Polar Pattern: Omnidirectional Microphone Type: Lavalier Microphone Connectivity: WireLess Origin: Mainland China Transmission distance: 20M Sensitivity: -42dB Battery Capacity(mAh): 75mAh Real-time Monitoring: Yes Frequency Range: 20-20KHZ Transducer: Condenser Microphone SNR: 64 dBm Charging input voltage: DC4.8 to 5.4V Microphone working current: 11 to 12mA Working time: About 6H Microphone turn-on current: 10 to 11MA Charging interface: Type-C or Light-ning Transmission delay: 30MS Receiver working current: 20 to 21mA Charge time: About 1.5H Receiver turn-on current: 8 to 9mA Charge current: About 60mA Receiver turn-off current: 2 to 3uA Frequency Range: 2.4GHz