Huaham 233621 Ultra Portable Wireless Super Bass Hands Free Bluetooth Speaker Aircraft grade aluminum magnesium alloy body,diamond cutting edge surface, LED display decorative design, fashionable and practical Full,High-Def Sound - Enjoy an impressively crystal clear sound quality and robust bass CVC echo cancellation technology,hands-free calling supported by a built-in mic; outstanding connection range of up to 26 feet Easily connect to Bluetooth-enabled devices such as smartphones, tablets, laptops, and desktops. Built-in Li-Ion Rechargeable Battery for up to 8 hours of playtime per charger(around 2 hours)