1. Bluetooth Version: V5.1 2. Wireless Charging output: 15W 3. Impedance: 4Ω 4. Frequency Range: 200Hz-18KHz 5. Battery: Built in 750mAh polymer battery 6. Input : Type-C 7. Sound Output Power: 3W 8. Size: φ99.5mm*52mm 9. Large flat surface for printing logo 10. Color: White plastic with natural color of Bamboo 11. Material: ABS,Bamboo,metal,GRS certified ABS 12. Certificates: CE-RED, RoHS，FCC-ID BTS-100 Metal Glass Top
