Bluetooth solution:JL AC7003 Bluetooth version: V6.0 Operation range: ≥10 meters Talking / Music time: about 5H (80% volume) Standby time: about 50H Charging time: about 2H Battery capacity: 30mAh for earphone, 300mAh for charging holder Speaker: Φ13mm@32 ohm Color: white Input port: type c