IPX5 water resistance Chip number: BP1048B Version V5.0 of Bluetooth Time needed to charge: 4 hours Hands-free calls via BT, TF, AUX, and USB are supported. 8W*2 rated power, 10W*2 peak power, and 3.7V/4500mAh battery 8–10 hours of playback at a moderate volume 10M is the wireless working range when there are no obstructions. Method of charging: Type-C Size of the product: 250*143.5*114 mm