These Bluetooth earbuds work with ALL brand phones; Apple, LG, Samsung, and more. Great sound and sturdy construction, these Bluetooth earbuds are supported by Q1 wireless charging allowing you to charge from charging pad. 1st driver: 12mm 2. Impedance: 32 OHM 3. bt version: BT v5.0 + EDR 4. bt use band: 2.4ghz 5. Power level: CLASS II 6. Output power: 30 mw 7. BT distance: 10 meters barrier 8. Frequency response: 20-20000 hz 9. Operating voltage range: 3.0v-4.2v 10. Mic sensitivity: 42dB 12. Noise reduction 13. Switch between Chinese and English (boot does not connect Bluetooth state, press the switch 2 times, the sound will hear switch successful) 13. Talking time is about 2-3hours 14. Music time about 2-3 hours 15. Standby time is over 96 hours 16. Charging time approx. 0.5 hours