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Through a JL7023 chip, the Foneng BL138 processes wireless audio via Bluetooth 5.3. Five hours of active music playback fits into a 25mAh earbud footprint. Under the 45-degree oblique housing, PC and silica gel maintain a physical seal in the ear canal.
Key Features
- Bluetooth 5.3: JL7023 chipset maintains a 10-meter stable link during high interference. Connection won't drop in crowded signal areas.
- Brass Ring Horn: 20Hz-20kHz frequency range produces flat, accurate audio response. Drivers deliver consistent output across the entire sound spectrum.
- 45-degree Oblique Design: PC and silica gel build stays secure during heavy sweat. Earbuds remain seated in the ear during rapid head movement.
- 250mAh Charging Case: Integrated Type-C port recharges internal batteries in 90 minutes. Provides enough power for multiple earbud recharge cycles.
- 6-Month Warranty: Coverage lasts 180 days against internal manufacturing defects. Hardware remains protected from failure under standard operating conditions.
Frequently Asked Questions
Does Foneng BL138 have game mode?
No dedicated low-latency gaming mode exists on this hardware. The Bluetooth 5.3 chip prioritizes connection stability over sub-40ms latency.
How to charge Foneng BL138 case?
Connect a Type-C cable to the bottom port of the 250mAh case. A full charge takes 90 minutes to reach 100% capacity.
