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 modes1. 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.