1.Speaker Type：Mini Bluetooth Speaker
2.Adjustment method：Press -button
3.Speaker Specification：TF card/For mobile /Bluetooth  /Hands free calls /LINE IN，/TF Card
4.Power supply: DC 5V (Built-in lithiumbattery )
5.Output:3W 
6.Speaker Unite：∮40MM
7..Signal-to-Noise：﹥80DB
8.Distortion：﹤0.5%@(1KHz)
9.Freqeuncy Response:90Hz-20KHz
10.Jack：3.5MM Support any 3.5mm audio device, such as PC, MP3/MP4, Mobile etc
11.Impedence：4Ω
12.Working time：4 Hours
13.Product Dimension：120*25*18mm
14.Weight：100G
15.Bluetooth Specification：Bluetooth 2.1+EDR
16.Operating Frequency Range：2402-2480MHz 
17.Support A2DP, AVRCP,Headset,Handsfree Profile
18.Support Codec:SBC
19.Bluetooth transmission distance：10 meters
20.Material：ABS