BQ40 Bluetooth headset with digital display, sports Bluetooth headset ear-mounted ultra-long battery life Features: [9D Surround Sound]: Use upgraded speakers to increase depth. Existence and space and presents 9D surround effects such as live scenes. [Lightweight and comfortable]: Follow the ergonomic shape concept. The integrated design is suitable for the ears, and it is convenient to wear the earphones and long-term stable and comfortable wearing and carrying. [Automatically turn on and automatically pair]: Smart to take out the headset from the storage box. The headset will automatically turn on and pair automatically. Easy to use and fast without any operation [LED display]: Smart LED digital display charging and discharging instructions more intuitively predict battery life [Extremely long battery life]: Not in-ear, no sense of rear hanging, new experience of outdoor sports, stable ear hanging, not easy to fall off I open listening without in-ear, 9D stereo sound effect, listening to songs and games for up to 30 hours Product Description: Model: BQ40 Wearing method: in-ear wear Standby time: 140 hours Bluetooth version: V 5.3 Use time: 5-6 hours Charging time: 1 - 2 hours Capacity of charging bin: 300mAh Headphone capacity: 50mAh Transmission distance: 15 meters