Arbalest Portable Premium Sound Wireless Bluetooth Mini Speaker with Rechargeable Battery - Red , with Mic Phone Handsfree, Enhanced Bass, Support Micro SD Card, Free 3.5mm AUX Line-in Cable - Amazing Sounds! Allows you to stream music from Bluetooth enabled devices such as cell phones, PDAs, MP3 players, PCs and laptops. Offers a wireless connection range of 10 meters Support Micro SD Card and 3.5mm AUX Line-in. Microphone built-in, phone handsfree while calling Phone time: about 6 hours, Music playing time:3-4 hours.Powered by built-in rechargeable battery or USB port. Arbalest retail packaging.30 Days Satisfaction Guarantee