YJ55 Smart Bluetooth Headphones Open Semi-in-ear Air Conduction True Wireless Sports Long-lasting Bluetooth Headphones NEW 2025

Specification: Bluetooth version: 5.4 Transmission distance: ≤ 10 m in open space Wearing style: semi-in-ear, ear-hook Battery capacity (charging case): 600 mAh Battery capacity (per earbud): 45 mAh Talk time: 6 hours (at 70 % volume) Charging time: 1 hour Charging port: Type-C, 3.7 V / 600 mA Waterproof rating: IPX4 Control method: touch tap Weight per earbud: 6 g Package dimensions: 113 × 84 × 35 mm Net product weight: 63 g Package weight: 97 g Functions: Chinese/English language switch Left or right earbud: double-tap to skip track Right earbud: triple-tap to adjust volume Left or right earbud: single-tap to answer/end call Right earbud: five taps to switch between normal mode or gaming mode