SHIDU Wired Voice Amplifier M900 Headset Microphones (25W, Bluetooth 5.0, 2200mAh)

Output Power: 25W | Model: M900 Wired | Bluetooth Version: 5.0 | Battery Capacity: 7.4V 2200mAh | Play Time: 5–7 Hours | Charging Voltage: DC 9V 1.2A | Frequency Response: 80Hz–18KHz | Size: 138.2×108.3×51.2mm | Weight: 552g | Case Material: ABS+TPU | Working Temperature: −10°C to 45°C | Interface Function: TF Card / USB / Charging Port / MIC / AUX