Bluetooth Speaker FM Radio Stylish Appearance Long Standby Stereo Field And Expandable Card Features: 【Stereo Effect】The full frequency speaker and diaphragm create a clean and sweet sound, with clear and balanced midrange and powerful. The speaker emits sound and spreads it around, achieving a three-dimensional sound effect. 【Bluetooth 4.0】Bluetooth 4.0 connection, fast transmission, low power consumption, barrier effective transmission within 10 meters, wide and stable signal range. 【FM radio】After short pressing the "M" button to swithes to FM mode, long pressing the "O" button will automatically search for channels. After the search is completed, the and volume adjustments will be the same as other modes. 【Multiple playback modes】When you don't want to connect to Bluetooth, you can insert a T-Flash card to play music, or use an AUX cable to connect to a computer or other device to play music. 【Long usage time】Using a 1800mAh lithiumion battery, when fully charged, it can listen to about 10 hours of music, about 150 songs, and has a long usage, meeting the needs of listening to music. Product Description: Product Name: Bluetooth Audio System Product color: khaki Impedance:4 ohms Rated power: 8W Frequency response range: 75Hz-20KHz FM radio:76-108MHz Bluetooth version:4.0 Frequency:2.4GHz-2.480GHz Receiving distance:>10m Charging standard: 5V-1000mAh Product size:10.3×10.3×10cm/4.1×4.1×3.9in Product weight:750g/1.65lb Package size:12×12×12cm/4.7×4.7×4.7in Package weight:800g/1.76lb Product List: 1 x Bluetooth speaker 1 x charging cable