Bluetooth alarm speaker - three batteries - Black - Luxury style - 5W

Overall dimension: 153 x 46 x 70mm
Bluetooth function: Bluetooth + ESR effective transmission = 10m
Battery type: removable rechargeable lithium battery
Battery capacity: 4200ma
Product material: ABS plastic / acrylic lens
Product horn: 50mm strong magnetic horn + high quality rubber edge
Main functions: Bluetooth music / collection broadcast / time display / alarm clock reminder / soft night light