Metallic design ; 

Portable , hanging portable design ; 

Bluetooth wireless audio transmission 

A variety of classic color choices Hands-free phone function , 

Bluetooth Computer Speakers Optional card small speaker

Bluetooth audio input

 Frequency Response : 160Hz-20KHz

 Distortion THD: ≤0.1% (3.7V / 1KHz / 1.8W 

Output Power : 2.0W 

Speaker : 4Ω 3W 

Sensitivity : -82dBm

 Resolution : ≥88 dB SNR : ≥90 db

 Charging voltage : DC 5V 

Operating voltage : DC 3.7V 

Battery capacity : 400MA 

Size : ф44 * H47.5mm