1. Sizes: 194.4*81*82mm. Weight: 598g.2. BT 5.0, chip: JL.3. Battery capacity: 2400mAh, charging for about 3 hours.4. Calls / music time: 6 hours.5. Speaker unit: 52mm*2, power 5W*2.6. Support BT, TF card, USB, AUX, FM and other playback modes.