Bluetooth Speaker
Availability: In Stock
SKU: TST-YY-77
Connection: bluetooth connection
Interface type :USB
Battery capacity :300mah
Frequency response range: 100hz-20khz
Output power :3W
Signal to noise ratio: 75 db or higher
Power supply: built-in lithium battery
Track: 2.1
Duration: about 2 hours
Extended storage :16GB
Bluetooth protocol :2.1
Number of speakers :1
Effective distance :10 meters
Function: insert card operation button
