Power Bank 5V USB Cable Adapter + LP-E5 LPE5 dummy battery DR-E5 DC Coupler for Canon EOS 450D 500D 1000D XS XSi T1iMODEL: USBPS700+DR-E5 (USB Cable + DC Coupler)Input: 5V 2-4AOutput: 8.4VConversion efficiency: 92% (DC-DC Efficient conversion rate)USB plug Specifications: USB2.0Length: about 120 cm (Can be customized)Package Includes:1 x USB Cables1 x DC CouplerDescriptions:1. In order to optimize your camera's work, use high-quality mobile power, mobile power needs to output 5 volts 2A / 4A current. When the power or current is insufficient, you can't shoot. Please choose at least better current.2. The mobile power has an automatic sleep mode and is turned off.3. Do not use computer USB, because the computer USB 2.0 output voltage is mostly 5v, but the current is less than 500mA current.4. Some mobile phone/tablet USB charger and resistance recognizer, do not know the camera, the current can not meet the requirements, so it is not recommended.5. Use the camera for a long time to set the camera standby time to the maximum standby time.SUITABLE FOR:For Canon EOS Rebel XSiFor Canon EOS Rebel XSFor Canon EOS 450DFor Canon EOS 500DFor Canon EOS 1000DFor Canon EOS Kiss FFor Canon EOS Kiss X2For Canon EOS Kiss X3For Canon EOS Rebel T1iAnd more model