Specification:

Type: Bluetooth speaker
connection method: Bluetooth connection
interface type: Usb
battery capacity: 300mah
frequency response range: 100hz-20khz
output power: 3w
signal to noise ratio: ≥75db
power supply: Built-in lithium battery
channel: 2.1 + 1
duration: 6 hours
extended storage: Not supported
bluetooth protocol: 4.1
number of speakers: 1
effective distance: 10 meters
function: Waterproof, voice prompt, dustproof, call function
operation method: Button
playback format: Mp3
shell material: Plastic
speaker adjustment method: Button
appearance size: 98 * 88 * 43mm
power mode: Usb
color: Blue, yellow, black, red, green

Packing list:

Speaker*1+usb*1

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