Lenyes Air 68 Wireless Bluetooth 5.4 Semi In-Ear Earphone

Lenyes Air 68 Wireless Bluetooth 5.4 Semi In-Ear EarphoneChannel system: StereoControl mode: touch buttonActive Passive: activeBluetooth solution: Blue 5656T3Bluetooth version: BluetoothV5.4Support bluetooth protocol SupportedBluetoothProfile: HFP, A2DP, AVRCPBluetooth operating frequency: 2402-2480MHZReceiving sensitivity: -82dB ±3dBBluetooth effective distance: ≥10 metersBest call distance: < 10 metersMaximum power: 5mWHeadset amplifier type: built-in chipHorn curve sensitivity: 110dB ±3dB (At 1KHz)Frequency response: 20Hz ~ 20KHzSpeaker unit: 13mm, 30ΩHeadset battery: 3.7V/30mAhBattery: 3.7V/300mAhMusic time: About 4.5HCharging time: about 1.5HFunction selling point:1, compact fit, light and easy to hold, aesthetic feeling overflowing, the upper and lower shell over UV process (anti-scratch) + double weight feel more2, all-weather ultra-long battery life about 5 hours full power earphone alone, 20 hours ultra-long battery life of both ears (charging compartment to earphone charging four cycles), lasting listening