Bluetooth Syncing: The Studio Buds case with bluetooth pairing button not only charges Studio Buds, but also allows Studio Buds to be paired with your , android or tablets. Easy & Fast charging: The replacement charger case for Studio Buds only takes 20 minutes for fully charging Studio Buds, enough for 2.5 times charging of Studio Buds with 660mAh built-in battery capacity. Visible LED Indicator: The wireless charging case for Studio Buds will always shows the battery levels by the LED light while charging . Pocket-Sized Charging Case:The compact and design the Studio Buds case to be carry easily everywhere. Wireless charging always. color:Black Material:plastic Package Contents: 1 x Earphone Charger Case 1 x USB Cable Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.