With 2X5W Dual Acoustic Drivers, Fm Radio, Handsfree Speakerphone, And Micro Sd HIGH-FIDELITY POWERFUL - 2x5W quality acoustic drivers, passive vibration, aptX Lossless and Bluetooth 3.0 technology combine to deliver crisp sound with fantastic high, middle, and lows, strong enough to fill up a living room without distortion VERSATILE MODES - Switch easily between Wireless Bluetooth,FM Radio, Micro SD card, USB flash drive and AUX-in. If your buy it mainly for FM radio, Model DY22L or Model DY33L might be a better choice as they have LED display to show channels LASTING BATTERY LIFE - Built-in 2200mAh rechargeable lithium battery for up to 8-10 hours of playtime. SIMPLE PORTABLE - Easy to set up and connect wirelessly, and you can also play from USB flash drive/Micro SD card. A pleasant size to carry everywhere with one hand VARIOUS CHOICES - More choices and details please refer to FAQ and Comparison Chart below