XO Bluetooth Speaker + Karaoke MIC F48 Phantom Black 40W

Bluetooth version: V5.0 Zhongke AB5312,
Transmission distance: 10m,
A2DP 1.3 AVRCP 1.5,
Frequency: 2.402GHz-2.480GHz,
Transmit power:8dB,
Battery capacity: 18650(3600mAh)/7.4V+battery protection board,
Music time: 6h,
Charging time: 5h,
Rated