1. Speaker: 52mm*2 4Ω5W*2 THD+N 10%
2. Size: 72x74.7x210.3mm
3. Bluetooth specification: Bluetooth V5.0 JL; support protocol A2DP, AVRCP, HFP Weight: 471g
4. Function: support Bluetooth playback, call, FM, TF card, USB, AUX playback mode
5. Call music time: 5 hours or more (80% volume playback) 6. Battery capacity: 1200mAh; charging time is about 2 hours