Опис
A4Tech B20 2Drumtek True Wireless Earphones
Key Features
-
13mm speaker drivers:
Deliver audio across a 20Hz–20kHz frequency range. -
Bluetooth 5.2:
Provides wireless connectivity with an operating range of up to 10 metres. -
Built-in microphones:
Designed for voice calls and other two-way audio applications. -
Portable charging case:
The 380mAh case provides approximately 20 hours of total playback at 50% volume. -
Compact and lightweight design:
Each earphone weighs approximately 4g, while the total weight is approximately 39g.
Audio Specifications
- Speaker size: 13mm
- Frequency response: 20Hz–20kHz
- Earphone sensitivity: 102dB at -10dBFS
- Microphone sensitivity: -42dB at 1kHz/Pa
- Earphone impedance: 32Ω
Wireless Connectivity
- Bluetooth version: 5.2
- Operating distance: Up to 10m
- Connection type: True wireless
Battery and Charging
- Earphone battery: Lithium battery, 40mAh
- Charging case battery: Lithium battery, 380mAh
- Charging power: 5V / 500mA
- Earphone charging time: Less than 1.5 hours from low battery to full charge
- Case charging time: Less than 1.5 hours from low battery to full charge
- Music playback per charge: Approximately 5 hours at 50% volume
- Total playback with charging case: Approximately 20 hours at 50% volume
Physical Specifications
- Weight per earphone: 4g
- Total weight: 39g
Рецензии
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