Havit M16 Retro HIFI Stereo Desktop Wireless Bluetooth Speaker Features: 1. Four-unit sound configuration + precision metal diaphragm, HIFI sound effect 2. Bluetooth 5.3 chip, low latency, strong stability, faster connection, better sound quality 3. 360-degree surround sound, immersive experience 4. Dual-channel symmetrical layout, independent internal airtight cavity, reduce channel interference 5. The sound field is wide and layered, the sound is stereo and accurate, lingering in both ears 6. Connect and use, fully compatible 7. Multiple mode connection Product parameters: 1. Material: ABS 2. Bluetooth version: 5.3 3. Bluetooth transmission distance: 10 meters 4. Output power: 5W 5. Speaker size: 50mm 6. Number of speakers: 2 7. Audio input: BT, AUX, TF, U disk 8. Frequency response range: 60Hz-15KHz 9. Signal-to-noise ratio: 75dB 10. Battery capacity: 1800mAh3.7V 11. Playing time: about 3-5 hours (medium volume) 12. Product size: about 380 x 55 x 73mm 13. Weight: about 622.8g 14. This product is measured manually, and there may be errors of 0.1-0.2mm and 0.1-0.2g in length and weight; there may be a slight color difference due to display and light problems. Please refer to the actual product! 15. Note: The delivery only includes the speaker, not other items in the picture!