Payment & Security
Description
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【AI Voice Control】Supports offline bilingual (Chinese/English) voice commands for hands-free operation including play/pause, volume adjustment, call management, and assistant activation without requiring network or apps.
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【One-Key Retractable Design】Innovative single-button cable extension and retraction system enhances safety during cycling and driving by allowing quick earphone deployment.
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【Ultra-Long 60+ Hour Battery Life】Equipped with 400mAh battery providing up to 60 hours of music playback at maximum volume and 70 hours at 80% volume, with fast charging capability.
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【Smart LED Display】Real-time battery status display keeps you informed of power levels, while intelligent vibration alerts ensure you never miss important calls.
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【Dual-Mic ENC Noise Cancellation】Advanced dual-microphone Environmental Noise Cancellation technology ensures crystal-clear calls even in noisy environments.
Specifications:
- Model: K91
- Bluetooth-compatible Version: V6.0
- Chip: BT8932H
- Working Distance: 10m
- Frequency Response Range: 20-20000 Hz
- Battery Capacity: 400mAh
- Music Playback Time: Up to 60 hours (max volume), 70 hours (80% volume)
- Talk Time: Approximately 40 hours
- Charging Time: 30 minutes to 80%, 90 minutes full charge
- Standby Time: 360 days
- Speaker Diameter: ∅ 8mm × 4mm
- Speaker Impedance: 32Ω ± 15%
- Sensitivity: 104 ± 3dB (at 1KHz 1mW)
- Microphone Sensitivity: -38 ± 1dB (f=1kHz, Pin=1Pa)
- Signal to Noise Ratio: 63dB (f=1kHz, Pin=1Pa)
- Earphone Type: Clip-on Lapel Style
- Cable Length: 32cm
- Audio Codec: SBC/AAC
- Working Voltage: 3.2-4.2V
- Working Current: 4-14mA
- Charging Voltage: DC 5V
- Charging Current: 500mA
- Charging Interface: Type-C
- Working Frequency: 2.4GHz
- Output Power: 3mW
- Output Impedance: 400Ω
- Low Voltage Protection: 3.1V
- Shutdown Power Consumption: 5μA
In the box
- 1 x Clip-on Bluetooth-compatible Earphones
- 1 x Silicone Earplug
- 1 x Type-C Charging Cable
- 1 x English User Manual