Feature: 1. MAIN PURPOSE: Small uninterruptible power supply for power outages, with battery backup mode to ensure that your device can still use the network in the event of a power outage. 2. WIDE APPLICATION: This portable uninterruptible power supply is compatible with most router, modem, security camera, cell phone, fax machine, fingerprint recorder, DSL, and more. 3. 1 INPUT METHODS: This mini UPS has 1 input methods, 9V DC adapter, with a maximum output power of 18W, which is efficient and practical. 4. BUILT IN BATTERY: This uninterruptible power supply has built in batteries with 8800mAh capacity, providing longer endurance, standard USB port, which can be used as a regular power bank. 5. CIRCUIT PROTECTION: This compact UPS has short circuit protection, voltage fluctuation protection, overcharging protection, over discharge protection, and temperature protection to ensure safe operation. Specification: Item Type: Uninterruptible Power Supply Material: ABS, PC Battery: 4 x Battery, Capacity: 8800mAh (4 x 2200mAh) (built in battery) USB: 5VDC 2A Output Power: 18W Maximum Application: Compatible with 95% of the router on the market, for security monitoring, MP3, MP4 and other digital products charging uninterrupted use. Package List: 1 x Uninterruptible Power Supply2 x DC Cables1 x User Manual