Wireless alarm clock speaker

Bluetooth speaker
Connection method: Bluetooth connection
Interface type: USB
Battery capacity: 4400MA
Frequency response range: 100HZ-20KHZ
Output power: 10
Signal to noise ratio: ≥70db
Power supply mode: built-in lithium battery
Channel: 2.1
Play time: 6 hours
Bluetooth protocol: 4.1
Number of speakers: 2
Effective distance: 10 meters
Function: insert card, remote control, radio, call function
Operation mode: button