Product Details: The Yesido BT11 TWS Earbuds are powered by the latest Bluetooth 5.1 chip, ensuring a stable and fast connection with your device. Designed for both performance and convenience, these earbuds offer up to 4 hours of music playback on a single charge and feature a compact, ergonomic design for comfort. The built-in GPS positioning ensures you never lose track of your earbuds, while the wireless charging capability provides ease of use and convenience. With the touch controls, you can easily switch songs, adjust volume, or answer calls. Specifications: Brand: Yesido Model: TWS11 Bluetooth Chip: JL AC6973A4 Standby Time: About 30 hours Earphone Battery Capacity: 30mAh Charging Case Battery Capacity: 300mAh Earphone Charging Time: Approx. 60 minutes Charging Case Charging Time: Approx. 45-60 minutes Key Features: Bluetooth 5.1 Connectivity: Enhanced anti-interference, providing stable and fast connections for uninterrupted listening. Auto-Pairing: Automatically powers on and pairs with your device when the charging case is opened. Long Battery Life: Enjoy up to 4 hours of music playback on a single charge, with a standby time of 30 hours. Superior Sound Quality: Equipped with 13mm large diaphragm drivers for clear and full sound with full-frequency adjustment. Intelligent Touch Controls: Switch songs, adjust volume, and answer calls with easy-to-use touch-sensitive controls. Wireless Charging & GPS Positioning: Convenient wireless charging and built-in GPS positioning for effortless tracking.