BS40 Desire song BT V5.0 wireless speaker, with 2400mAh battery, for 4 hours of calls and music, support BT, FM, TF, USB, AUX, TWS playback modes 1. Sizes: 230*94*98mm. Weight: 775g 2. BT version: 5.0, BT chip: JL 3. Battery capacity: 2400mAh. Charging time: about 1.5 hours 4. Talk/music time: 4 hours 5. Speaker unit: 66mm*2, power: 7W*2 + 2 low-frequency diaphragms 6. Support BT, FM, TF, USB, AUX, TWS, and other modes