Product information:

Connection method: Bluetooth connection
Interface type: card reader
Battery capacity: 400MAH
Frequency response range: 40Hz-20KHz
Output power: 4Ω3W
Signal to noise ratio: ≥70db
Power supply mode: built-in lithium battery
Channel: 1
Playing time: 2-3 hours
Expansion storage: 16GB
Bluetooth protocol: 4.0
Number of speakers: 1
Effective distance: 10 meters
Operation mode: button
Play format: MP3, WMA
Shell material: plastic
Box material: plastic
Appearance size: 6*6*13.5CM
Product weight: 0.18 (KG)
Packing list: one Bluetooth speaker and one charging cable
Color: blue, black, red, gray
Power supply mode: USB

Packing list:

sound*1