These modern-looking earbuds sound as good as they look! Comfortable and discreet these easy-to-pair Bluetooth earbuds come in a compact charging case that’s able to be recharged wirelessly! -Prop 65 certified 1. Bluetooth V5.0 2. Wireless charging Qi Compatible 5W or Micro USB Charging 3. Rated Power: 6mW 4. Working Distance Range: ≤ 10 M/ 33FT 5. Frequency Range: 100Hz-20KHz 6. Charging Voltage: 5V 350mA 7. Battery Capacity: 45mAh (each earbud) 350 mAh (charging case) 8. Charging time: 1 hour (each earbud) 1-1.5 hours (charging case) 9. Playback/Music time: ≤ 3-3.5 hours 10. Talk Time: ≤ 2-2.5 hours 11. Standby Time: ≤ 100 hours 12. Hands-free call microphone