5.3 Bluetooth Open Ear Hanging Long Range Wearing Call Noise Reduction Non In Ear Waterproof Wireless Bluetooth Earphones Features: 【 Enhanced Sound Details High Sound Quality】 second-generation digital sound enhancement technology second-generation acoustic structure cavity low-frequency and powerful high matching sound and penetration are good and excellent timbre reproduction can present richer sound details. 【 Bluetooth 5.3 Audio Visual Synchronization】 Adopting the new version of Bluetooth 5.3 it supports lossless audio transmission. Compared to Bluetooth 4.0 it has faster and more stable transmission speed and achieves ultra-low latency audio visual synchronization. 【 Comfortable to the ear ultra light and no sensation 】Multi point refined design the curvature of the earphones is exactly the same as the curvature of the human ear surface and both the front and rear chambers are connected relieving ear canal pressure and bringing a more comfortable in ear experience. 【 Long usage time】 It can listen to music for about 8 hours and when used with a charging case the playback time is about 48 hours. Using fast charging technology placing it in the charging case for 5 minutes can obtain 1.5 hours of battery life. 【 IPX5 Waterproof Safe to Use】Lightweight earphones with outstanding color performance and enhanced waterproof design help you train more confidently. 【 No delay in use】 Using Bluetooth version 5.3 reduces power consumption prolongs usage time speeds up transmission stabilizes transmission and reduces latency issues. Product Description: Product Name: Bluetooth Earphones Product colors: black Product material: ABS Bluetooth version: Bluetooth 5.3 Noise reduction version: CVC8.0 Bluetooth transmission distance: 10m Single ear capacity: 50mAh Charging compartment capacity: 400mAh Horn sensitivity: 92dB ± 3dB Charging interface: Type-c Input current of charging compartment: 5V1A Package size:13×11.1×4.1cm/5.1×4.4×1.6in Package weight:101g/0.22lb Product List: 1×Instruction 1×Charging cable 1×Bluetooth Earphones