Product information: Color: L50 Black (heavy bass four speakers IPX5 life waterproof long standby 30H) Bluetooth version: Smart Bluetooth 5.0 Bluetooth distance: 10m Audio decoding: SBC Frequency range: 20-HZ-20KHZ Battery: polymer lithium battery 30Mah Runing hour: 5-6H Standby duration: 40-50 hours Charging voltage: DC 5V Discharge voltage: 500MA Interface: TYPE-C/contact magnetic suction