Kõrvaklapid Energy Sistem Style pocket Bluetooth earphones

AudioFrequency response: 20 Hz ~ 20 kHzDriver diameter: 6 mmType: dynamic ConnectivityBluetooth® 5.1 (class 2) wireless technology.Frequency band: 2.4 GHzMaximum output power: < 20.00 dBmCompatible Bluetooth profiles: HSP / HFP / A2DP / AVRCPCompatible with SBC codecsUp to 20 m distance rangeTrue Wireless function with auto-pairingHands-free functionVoice assistant compatible with Google/Siri MicrophoneType: built-in microphoneSensitivity: -42 dB ± 3 dB (@1 kHz)Frequency response: 100 Hz ~ 10 kHz BatteryEarbuds:Capacity: 25 mAh (each earbud) / 3.7 VType: lithium-polymer batteryBattery life at medium volume: 4 hours*Charging time: 1.5 hoursCharging method: charging case *This value is approximate. The battery life depends on the selected volume and the type of music. Charging case:Capacity: 150 mAh / 3.7 VType: lithium-polymer batteryExtra battery life: 8 hours*Charging time: 1.5 hoursCharging port: microUSB