Compact and Trendy:- Enjoy amazing audio experience on the go. Mini and compact design makes it easy to carry along anywhere you travel. Bluetooth:-Wireless music streaming via Bluetooth 4.1 or below. Bluetooth range: Line of sight, 10M or 30FT,Easy to connect by Bluetooth connect smart phone ,laptop. Power Source: USB Chargeable. Extra-long and rechargeable 1200mAh allows you enjoy up to 3 hours of playing time. Powerful battery:- Equipped with 1200 mAh built-in rechargeable battery.Provides non-stop entertainment for over 5-6 hours once fully charged. TF Card Music Player: Built-in TF card read-only decoding, can play TF card stored in MP3 / WMA format music directly.