Wireless Microphone System Receiver with Handheld Mic UHF Anti-Howling Digital Display Screen for Home Cinemas Karaoke Church Speech Wedding Party Singing Rechargeable Wireless Microphone Handheld Microphone Pickup: Dynamic coil head Directionality: Unidirectional Transmission Power: Less than 10mW Dynamic Range: ≥ 90dB Frequency Response: 70Hz-18kHz Frequency Range: Channel A (663MHz-678MHz) and Channel B (679MHz-694MHz) Launch Distance: About 25m/82ft (open area) Gain Adjustment: 0dB to 20dB Battery Type: Lithium ion battery Battery Capacity: 3.7V/1200mAh Charging Method: Type-C charging Charging Time: About 2 hours (5V/1A) Usage Time: About 8 hours Receiver Audio Output: 6.35mm line output Battery Type: Lithium ion battery Battery Capacity: 3.7V/1200mAh Charging Method: Type-C charging Product Style: 1 Receiver with 1 Microphone, 1 Receiver with 2 Microphones (optional) Microphone Size: 24.5 * 5 * 5cm/9.6 * 2 * 2inch Receiver Size: 11.5 * 3.2 * 2.5cm/4.5 * 1.3 * 1.1inch Microphone Weight: 359g/12.7oz Receiver Weight: 63g/2.2oz