Function: digital display screen Bluetooth Protocol: 5.3 Usage: earbud type Whether simple or binaural: bilateral stereo Battery life: 4 to 8 hours 1: [Dual rail sliding cover design] This Bluetooth headset features a new improved sliding charging compartment that can be opened with a simple press. 2: [Strong battery life] This Bluetooth headset lasts a long time and has a strong power reserve. 3: [Extremely fast charging] This Bluetooth headset optimizes the Type C charging port, charging more efficiently, and also comes with a charging cable, making it more convenient to carry. 4: [Multi-device compatibility] This Bluetooth headset is compatible with all Bluetooth devices and can work with both IOS and Android systems. 5: [HIFI sound quality] This Bluetooth headset adopts a three-layer composite acoustic structure, taking into account rich vocal details and solid bass, along with a sophisticated acoustic measurement system to truly restore the beauty of sound. [French company and brand TECH DISCOUNT]: Our company TECH DISCOUNT manufactures and sells this high-quality product compared to similar products on the market (even if the photos are similar, they are not designed the same way and sellers do not provide the same after-sales services). Each product undergoes strict quality control before shipment, ensuring you receive your product in excellent condition. In case of quality issues, we will provide a free exchange within 14 days. Shipped from France on the same day as the order, and you will receive it as soon as possible (unlike other sellers who cannot guarantee shipping time or ship from abroad).