SHIDU Voice Amplifier S617 Wired Headset Microphones (16W, 1800mAh)

Output Power: 16W | Model: S617 | Battery Capacity: 3.7V 1800mAh Lithium Battery | Play Time: 6–8 Hours | Charging Voltage: DC 5V | Frequency Response: 80Hz–18KHz | Speaker Specifications: 2Ω 5W Dual Voice Coil | Size: 102.6×88×42.3mm | Weight: 190g | Case Material: ABS | Working Temperature: −10°C to 45°C