Speaker Subwoofer Bluetooth Speaker

Type: Bluetooth speaker
Connection method: Bluetooth connection
Interface type: USB
Battery capacity: 400mAh
Frequency response range: 40Hz-20KHz
Output power: 3w
S / N ratio: ≥75dB
Power supply: built-in lithium battery
Channel: 2.1
Playing time: 4
Extended storage: 32GB
Bluetooth protocol: 4.1
Number of speakers: 1
Effective distance: 10 meters
Function; drop-proof, voice prompt, card, radio
Operation mode: key
Play format: MP3
Shell material: plastic
Support format: TF card
Speaker adjustment method: Button
Is there a radio function: Yes
Box material: plastic
Appearance size: 80 * 45 * 140MM
Package type: charging cable + box

Color: pink, blue, black, silver gray, green, brown