Slim Fit Snap-On Case: Flash compatible camera cut out, pear shaped cut out enables boost case battery attachment stylish slim fitting snap on case, lightweight design. Dimensions: 4.5" x2.36" x 0.06" and weight: 0.4 oz, 14 grams. Detachable Extended Battery: Rechargeable 1900MAH Li-Polymer battery, Sync and charge simultaneously, durable protective casing, battery level indicator, battery on/off, enhanced audio speaker output. Dimensions: 4.8" x 2.37" x 0.68" and weight: 2.2 oz, 62 grams. **Phone not included**