Thank you for viewing. This is the "BONX mini" Bluetooth headset (black), popular for outdoor activities and sports. • Model Number: BX3-MCB1 • Color: Black • Connection: Bluetooth • Included: Charging case, USB cable, outer box, instruction manual (everything in the photos) • Usage: Used only once, in excellent condition Group talk is possible using the dedicated "BONX" app. With the charging case, it can be used for up to 18 hours. Lightweight and compact, it fits snugly in your ear and is widely used for running, cycling, mountain climbing, etc. *Please refrain from purchasing if you are looking for a perfect item, as this is a used product.