For Macbook Pro 85W / Retina 87W 15 inch Power Adapter Protective Cover(Red) Filter-Battery USB Charger The built-in 110mAh battery provides

The built-in 110mAh battery provides about 8 working hours

Handsfree profile

Bluetooth signal range: less than 10 meters

Common shortcut keys: Long press 0 - turn on power saving mode

For Macbook Pro 85W / Retina 87W 15 inch Power Adapter Protective Cover(Red) Filter-Battery USB Charger The built-in 110mAh battery providesFeatures: 1. Double sided hollow design, easy to discharge the heat generated during charging. 2. Anti shock and anti fall, no deformation after kneading. 3. Delicate and slightly matte, soft and skin friendly. 4. Can be washed repeatedly without discoloration. 5. Product material: silicone. 6. Suitable for iPad Series 10W 12W; for Macbook 12 inch 29W Macbook Air 13 inch 30W; for Macbook Air 11 inch 13 inch 45W; for Macbook Pro 60W Pro Retina 61W 13