1.Speaker Type：Mini Bluetooth Speaker
2.Adjustment method：Touch-sensitive
Speaker Specification：TF card/For mobile /Bluetooth  /Hands free calls /LINE IN，/TF Card
3.Power supply: DC 5V (Built-in lithiumbattery )
4.Output:3W 
5.Speaker Unite：∮36MM
6.Signal-to-Noise：﹥80DB
7.Distortion：﹤0.5%@(1KHz)
8.Freqeuncy Response:90Hz-20KHz
9.Jack：3.5MM Support any 3.5mm audio device, such as PC, MP3/MP4, Mobile etc
10.Impedence：4Ω
11.Working time：4 Hours
12.Product Dimension：∮：112mm,H:29.5mm
13.Weight：138G
14.Bluetooth Specification：Bluetooth 4.0+EDR
15.Operating Frequency Range：2402-2480MHz 
16.Support A2DP, AVRCP,Headset,Handsfree Profile
17.Support Codec:SBC
18.Bluetooth transmission distance：10 meters
19.Material：ABS