Item Name: Power Bank Case Output Power: 5V/1A Battery Type: 2 x 18650 Batteries (Not Included) Applicable Type: Suitable for Most Mobile Phones on the Market Input Power: 5V/1A Working Temperature: -10 Degrees Celsius - 40 Degrees Celsius LED Lights: Support Cycle Life: ＞500 Times Features: Welding-free, Detachable Back Cover, Safety Protection Material : ABS Manual : no Size Details: 9.8cm x 4.1cm x 2.25cm/3.86" x 1.61" x 0.89" (Approx.) Specifications: Made of premium ABS material, the power bank case is wear-resistant and reliable for long-time use. The power bank box can achieve a triple safety protection system due to the use of smart circuits, American mobile power technology and smart control circuits (charge control, charge protection, discharge protection, overload protection, short circuit protection). The length of the product is 98mm, the width is 41mm and the height is 22.5mm. It is suitable for most of the mobile phones on the market. Power bank case has a long service life as it has the features of shockproof, wear-resistant, anti-fall and corrosion-resistant. Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement.This is a solder-free mobile power box, excluding the battery, the battery is 18650 flat-head battery, the battery needs to be purchased separately, buy it back and install the battery before you can use it. Be sure to pay attention to the positive and negative poles when installing the battery. Package Includes: 1 x Power Bank Case (Battery Not Included)