1.Bluetooth
2.hands-free calls
3.voice prompts
4.Support TF card/Micro SD card & USB flash
5.LINE IN function connect to MP3 / PC/ iPhone /iPod/mobile phone/computer/Other Audio.
6.with FM
Speaker: anti-magnetic
speakerFrequency:100HZ-- 20KHZ
SNR:≥65db
Distortion:≤0.5%
bluetooth:Bluetooth 2.1+EDR
Distance:10M
Battery: built-in 3.7V/400MA lithium battery
Product Size: 15.5*5.3*5.5mm
Color:red,yellow,blue,green