Havit Bluetooth Speaker M65 IPX7

IPX7 waterproof
Battery capacity: 3.7V/1800mAh
Play time: 15H
Talk time: 15H 
Charging time: 3.5H 
Voice chat: Supported
Support: Bluetooth ， AUX ，Micro SD,hands free calling
Material: ABS+Fabric
Speaker frequency: 80Hz-20kHz