Features:1. Support Bluetooth V3.0 EDR; 2. BT Handfree for calls; echo processing3.Transmission range:4. Built-in High capacity lithium battery5. Stereo sound output, Built-in bass diaphragm,with perfect Bass effect 6. Line in. Connect to MP3/ PC/ iPhone/iPod/mobile phone/computer or other audio

Features:1. Support Bluetooth V3.0 EDR; 2. BT Handfree for calls; echo processing3.Transmission range:4. Built-in High capacity lithium battery5. Stereo sound output, Built-in bass diaphragm,with perfect Bass effect 6. Line in. Connect to MP3/ PC/ iPhone/iPod/mobile phone/computer or other audio system7. Bluetooth Profile: high quality audio processing A2DP V1.2; 8. Low battery alarm function9. Built-in microphone for hands-free speaker phone calling--- Easy to pair No code or pin needed and only 8.3 ounces----Easily to carry with10.Smart Speaker:Smart to connect to the device you used last time11.Outdoor,you can take it outside when you go to travel,Subwoofer ,enjoy music any time!12.Waterproof,Dustproof,Dirtproof,shockproof,snowprooof!Amazing Gadget !

Parameters:Bluetooth transmission distance:  up to 10 metersColor:  Red ,Light blue,Dark blue,Yellow,Green GreyBlutooth versio: V3.0 EDRAudio Line: 3.5mmWeight: 218g(including built-in li-on battery)Input votage: DC5V 500mAOutput power: 3W*2 (1KHz,THD10%)Frequency: 200Hz - 20KHZSignal&noise ratio: ≥85dBDegree of distortion: Impedance: 4 OHM(Ω)Li-ion Output: 3.7V~4.2V 0.05V  Rechargerable battery: polymer lithium battery 3.7V 800mAhLi-ion Input: 5V  Charging time: About 3 hoursPlaying time: About 5 hoursCase Material: ABSDimensions: 12.5 * 2 * 4CM

PackageBV210 Speaker (inclue hang buckle) * 1USB Cable * 13.5mm Audio Line * 1User Manual * 1