140mAh B3 Bone Conduction Earphone with 8GB SD Card – Wholesale Deal
Premium bone conduction technology delivers crisp audio while keeping ears open for ambient sound. High-sensitivity vibration unit ensures deep bass and clear mids without ear canal pressure. Built-in 140mAh battery supports 6+ hours of continuous playtime; ultra-lightweight titanium alloy frame guarantees durability and all-day comfort. Includes 8GB SD card for offline music storage. Ideal for runners, cyclists, and safety-conscious users needing situational awareness. Water-resistant design withstands sweat and light rain. Global wholesale pricing with bulk discounts—direct factory supply guarantees unbeatable value. Low MOQ for resellers and distributors.