Joway BM020 Ultra-Portable Wireless Bluetooth Speaker sound box,Powerful Sound with build in Microphone, Works for Iphone, Ipad Mini, Ipad 4/3/2, Itouch, Blackberry, Nexus, Samsung and other Smart Phones Players (yellow) 1;Supports Wireless Music Streaming via New Bluetooth V4.0 Technology. 2;Highly powerful 600mAh total 3W acoustic drivers and ultra-small size produce a wide audio spectrum 3:Support nondestructive APE, FLAC, WAV, WMA hd music playback, unlimited nondestructive high-definition sound quality, built-in high capacity of 600 mah lithium-ion batteries, music duration 5 h, Life time: 26000 hours 4;Built-in microphone for hands-free speaker phone calling video chat,google talk,skype or wechat.Easy to pair - No code/pin needed .Light smart convenient to carry, 5;Mobile phones NFC induction met speakers NFC marked position, mobile phone set out voice whether to connect a bluetooth device, click "yes", and can successfully connect speakers.