Real Water Cup Wireless Speaker Player -Real Water Cup -Wireless Wireless Speaker -Build in battery Phone Function, Real water cup with Wireless player Frequency Range: 55Hz-20KHz Power Source: Battery, AC Communication: Bluetooth Output Power: AC 2W Charging time: 2 Hours Battery capacity:400MAH Working time: 4-5 hours USB port: USB 2.0 Name Wireless Speaker Model WDL-1 Color Red, Black Wireless BT 2.0 Wireless Distance 10m Microphone build in Waterproof support IPx6 Pick up/end a call support working time 4h charging time 2h Battery 400 mah Charging Port USB 2.0 Power supply 5V 1A Warranty 1 year Material Plastic Operating Temperature 10 40 C Working Humidity 95% RH Weight 0.29kg Accessories cable, manual, Device