Oupopo OP-021 MIni Hifi Stereo Wireless Bluetooth Speaker For iPhone 6\/6S Plus Samsung Smartphone Description:Enjoy your music on the go， everywhere you go. The Oupopo Mini Bluetooth speaker delivers full， natural sound with dramatically deeper bass than you'd expect from an ultra-compact speaker that fits in the palm of your hand. It connects wirelessly to your smartphone， tablet or other Bluetooth device， so you can listen to your music， videos or games anytime， anywhere.And the built-in speakerphone lets you take calls out loud， too. Specifications:Bluetooth 4.0Distortion less than 1%SNR!#!amp!*!ge;80DBRated Impedance:16ohmChannel Separation!#!amp!*!ge;50dBSpeaker:3W\/4!#!amp!*!Omega;Frequency range:100HZ--20KHZBattery:3.7V\/500mAhWorking Voltage:3.7- 4.2VColor: Black， SilverSize:73*62*62 mm Package Included:1*Oupopo OP-021 MIni Bluetooth Speaker1*Charging Cable1* User Manual More detail: