W35 Air Wireless Headphone

Frequency: 2.4GHzTalk time: more than 45 hoursWorking range: 10 metersStand-by time: more than 200 hoursPlaying music time: more than 45 hoursFrequency response: 20-20000HzCharging time: about 2 hoursSpeaker unit: 40MM diameterImpedance: 32Ω±15%Sensitivity: 98dB±3dB