Release the singer inside of you with the V13 Wireless Microphone HIFI Speaker Karaoke Mic, a fun and entertaining speaker and microphone. Details of the product Version: 5.0; Power: 5W; Electrical Condenser BT Voltage input: DC5V Frequency range of maximum sound pressure: >115Db 1kHz THD<1 Range of response: 200 Hz–20 kHz Capacity of the battery: 3.7V 1200mA Mix Mode: reverberation of echo sounds Link: Wireless Type of Bluetooth: Handset Use: FM radio: 75-108 Hz; HIFI speaker; family karaoke; mobile karaoke Weight of Packing: 0.32 kg Size of box: 20 x 6.7 x 6.9