BS7 Mobu sport V2.1 speaker 600mAh battery for 5 hours of music playback, TF card and AUX play support, lightweight and small1. Speaker size: 110*90*40mm. 2. Weight: 130g. 3. Wireless chip: Zhuhai Jieli. 4. Wireless version: 2.1. 5. Battery capacity: 600mAh lithium polymer battery, talk time: 5 hours, music time: 5 hours, standby time: 70 hours, charging time: 3 hours. 6. Speaker diameter: 56mm, single speaker. 7. Support maximum 32G TF card, support AUX play.