1. 8.5W high fidelity sound quality 2. Bluetooth 5.0 chip 3. TWS couplets can be used for various small parties 4. 1500mAh battery lasts up to 4-6 hours 5. Multi-function speaker supports Bluetooth/USB/TF/AUX/FM 6. Standby time: 27h 7. Charging time: 3-4h 8. Product size: 249x90x104mm 9. Net weight: 659g