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The KSMART BD-A40 Wireless Earphone delivers high-quality audio performance with an advanced Wireless 5.4 chip for a stable and powerful connection. Designed for comfort and long use, it offers excellent sound clarity for music, movies, and calls.
With a 40-hour total playtime and 10-day standby time, this earphone ensures reliable performance throughout your day. It features a Type-C fast charging system that fully charges in just 1.5 hours, supported by a 300mAh charging case for extended playback.
The BD-A40 includes intelligent noise reduction, binaural HD calling, and music/call control, making it perfect for both entertainment and professional use. It pairs easily with all Android and iOS devices for seamless connectivity.
Up to 40 Hours Music Playtime
10 Days Standby Time
1.5 Hours Fast Type-C Charging
Advanced Wireless 5.4 Chip
Intelligent Noise Reduction
300mAh Charging Case
Compatible with Android & iOS
Model: BD-A40
Battery (Earphone): 50mAh
Charging Case: 300mAh
Charging Time: 1.5 Hours
Music Play Time: 40 Hours
Standby Time: 10 Days
Impedance: 32Ω
Voltage: 3.7V
Sensitivity: 101±3dB
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