Portable Speakers, PYRUS 2x10W Output 3D Wireless Speakers Bulit-in 4400mAh Power Bank and Microphone for Handsfree Calling-Black 10W+10W dual-channel, provides outstanding strong bass and loud sound, you can enjoy music at the best. 2 in 1 Function: MP3 speakers portable with extra Built-in 4400mah Rechargeable Battery for up to about 12 hours of playtime.What's more,it can also used as power bank to charge your cell phones. Easy access to hand free talking / Volume up / Volume down / fast forward (skip) / Backward / Pause / Play / Power buttons. Talk with clarity and loudness: Hands-free calling with the built-in microphone, easy to answer a call when connect to your phone. Support TF card and AUX in to play music. High-end appearance. Sleek and fashion look, full body aluminum alloy material design with silicone bottom protection enables this portable speaker look noble.