Mini wireless in-ear headset, with ultra light, portable and Long battery life design, perfect suitable for daily use. Product detailsProduct Type: Wireless,Bluetooth in-ear headset Chipset: Realtek8763BRDSignal range: 33ft in open space Playing time: 4hours Driver size: 6mm Unit weight: 53gCharging time: 1~1.5hoursBluetooth version: V5.0What?s in the box1 x pair of Wireless Earbuds1 x Charging Case 1 x USB Charging Cable 1 x User Manual 3 x Earbuds ( S / M / L; size M earbuds pre-installed)