1. Bluetooth version: 2.1 EDR 2. Speaker : 1 speaker (43mm 4Ω 2W) + 1 bass radiator 3. Rechargeable battery: 800mAh (BL-5B) 4. Charging voltage: 5V/1A 5. Interface: Micro USB port Micro SD card slot 3.5mm Earphone jack 6. Bluetooth / Micro SD card mode 7. Micro SD card: Support MP3/WMA format 8. FM Radio (76 - 108 MHz) 9. Mobile Handsfree function 10. Card reader function 11. LCD display 12. Unit size: 120 (L) x 20 (W) x 65 (H) mm Technical data and specifications are subject to change without prior notice.