FT-BT20 Mini Retro Card USB Flash Drive FM Radio Wireless Bluetooth Speaker<br> Features:<br> 1. The front panel adopts an independent volume knob design, which is retro and beautiful and more convenient to use<br> 2. Multiple playback modes, you can choose according to your needs<br> 3. Full-range speaker design, surround stereo<br> 4. Physical buttons on the top, simple and convenient operation<br> 5. Handle design, easy to carry<br> Product parameters:<br> 1. Output power: 5W<br> 2. Speaker size: 2 inches<br> 3. Signal-to-noise ratio: greater than or equal to 87dB<br> 4. Frequency response range: 20Hz-20KHz<br> 5. Sensitivity: 1000mV<br> 6. Speaker impedance: 4 ohms<br> 7. Charging requirements: USB DC5V<br> 8. Battery capacity: 500 mAh<br> 9. Battery life: 2 hours<br> 10. Speaker size: 102 x 62.5 x 73mm<br> 11. Net weight: 350g<br> Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-YJL official store