Multifunctional Wireless Sensor Speaker Rotating Phone Holder With RGB Lights 1. Bluetooth chip: JL 2. Bluetooth version: 5.3 3. Bluetooth distance: 10M 4. Amplifier specification: 3.7V 5. Charging parameters: DC5V (600mAh) 6. Charging time: 2 hours 7. Speaker specifications: 40mm, 4Ω5W x 1 8. Frequency response: 200Hz-16KHz 9. Signal-to-noise ratio: 90dB 10. Main functions: bluetooth, card slot, stand 11. Playback time: approximately 3-4 hours (playback time varies depending on volume) 12. 360-degree sound field system, rear-mounted directional sound guide hole + dual graphene diaphragm forward sound pressure 13. Intelligent switching between sensing mode and Bluetooth 5.3 dual channels 14. Ergonomic design, integrated acoustic and electrical components, anti-slip pad on the bottom, stable placement on a desktop, adjustable angle 15. Built-in sensor detects phone audio when it's near. 16. Built-in 1200mAh high-capacity lithium battery provides long battery life, with standby time up to one week.