Features: Compact and ultra-lightweight, the bluetooth-compatible earbuds are perfect for workouts, runs, sports and gaming. The earbuds'6mm diameter speaker presents a powerful and wide sound range, which makes the treble full of dynamics, and the powerful. Adopt advanced Bluetooth-compatible chip makes the sound played by the earphones much more beautiful and pleasant. Bluetooth-compatible earbuds are designed according to ergonomics, Fits either ear, wear the bud on ears for better call clarity. Working for Time for up to 36 hours on a single charge. Specifications: Material:ABS+ Metal Earbuds Size:Approx.18.5x13.5mm/0.73x0.54in Charging for Case Size:Approx.44.5x32mm/1.75x1.26in Color:White,Light Yellow,Black,Pink,Purple,(Optional) Bluetooth-compatible Version:5.1+EDR Operation Range:10m; Frequency Range:20Hz-20KHz Earphone Battery Capacity:50mAh Charging for Case Battery:350mAh Microphone Sensitivity:42db Note: Please allow 1-2cm errors due to manual measurement,pls make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1x Wireless Earbuds 1x Charging for Case