Water Cup Bluetooth Speaker 

Battery Capacity: 500 mAh 

Charger: USB interface 

Play Duration: About 4-6 hours 

Charging Time: About 2 hours 

Material: Stainless Steel 

Capacity: 500ml/18oz 

Simple Operation: 

Bluetooth connection Search directly for music playback 

Left Button: Long press- Reduce the volume / Short Press- Last Song

Right Button: Long press- Turn up the volume / Short Press- Next Song