1. Rechargeable, with built-in 18650 rechargeable battery. 2. Support USB flash disk and TF card (not included). 3. 2 Bands Radio receiver: FM 4. Max power: 3W 5. Rate resistance: 4ohm 6. Noise ratio: >=80dB 7. Frequency effect: 100Hz-18KHz 8. Input voltage: 5V DC 9. Size: 85 * 60 * 38mm 10. Package include: - 1 x Radio - 1 x 18650 rechargeable battery (installed inside the device) - 1 x Charging cable
