RK-C250 Portable RGB Atmosphere Light Magnetic Bluetooth Speaker with Wireless Charging Function Features: 1. Bluetooth 5.3 chip, fast transmission speed and longer transmission distance 2. Built-in large-capacity battery, long battery life 3. Support TWS interconnection function 4. Adopt transparent cyber style design, with RGB lighting, beautiful and unique 5. High-definition sound quality, hard-core strength 6. 40mm high-sensitivity full-range unit, clearly showing sound details 7. Built-in musicgame dual mode to meet various entertainment needs 8. Type-C interface, fast charging 9. Magnetic lock, one-touch fit 10. With wireless charging function, support charging mobile phones, headphones, watches 11. Small and light, easy to carry Product parameters: 1. Bluetooth version: 5.3 2. Bluetooth range: about 10 meters 3. Bluetooth protocol: A2DP, AVRCP 4. Speaker unit: 40mm dynamic driver unit 5. Noise level: 25dB(A) 6. Distortion limited output power: 3W 7. Speaker impedance: 4 ohms 8. Rated input: 5V9V-2A 9. Rated output: MAX 15W (15W10W7.5W5W2.5W) 10. Rated frequency response: 250Hz-15kHz 11. Interface: Type-CUSB-C 12. Battery capacity: 200 mAh 13. Battery life: about 6 hours 14. Product size: about 59 x 45.5mm 15. This product is manually measured, and there may be an error of 0.1-0.2 mm and 0.1-0.2 g in length and weight; there may be a slight color difference due to display and light problems. Please refer to the actual product!