Support Agreement: A2DP1.3/HFP1.6/HSP1.2/AVRCP1.6/D11.
Frequency: 2.4GHz Impedance: 32 OHM Transmission: class2
Output power: 30mW Range: 33feet F
frequency response: 20-20000Hz
Talking Time: 3-4 hours
Charging time about 1 hour (power indicator charging: red light; full power: red light off, blue light on)
Airpods Standby Time: 120 hours
Battery: 60mAh rechargeable Li battery
Operating voltage range: 3.0V-4.2V
AirPods sensitivity: -42dB
Product Size: Length 25MM* Width 15MM*High 35 MM
Charging power: DC5V power supply [round hole interface] (computer USB port, mobile phone charger, car charger)
Compatible phone: compatible with almost all Android, Apple, Microsoft, and Saipan systems with Bluetooth mobile phones