ITEM NAME:2pc NP-FW50 DC Coupler Dummy Battery for Sony A7S A7R A7MII RX10 NEX-7 A6500 Description: This DC coupler battery adapter(dummy battery) can works with battery pinch with 7.4-8.4v DC output. It actually replaces the FW50 li-ion battery to enable your camera can work with external big capacity battery for longer working time. Built-in fully-decoded protective circuit, displaying the electricity consumption on the screen of the SLR camera. Bulti-in protection of High-power overvoltage, overcurrent and short circuit. Application: For Sony A7, A7II, A7R, A7RII, A7S, A7SII, A7MII, A3000, A5000, A5100, A6000, A6300, A6500, A33, A35, A37, A55, NEX3, NEX5, NEX7, RX10, etc. Specification: Interface:DC Female(5.5mm*2.1mm ) Input Voltage: 7.4v to 8.4v Working current: 2A Cable Length:100 cm Weight:36g Material: Plastic Decoding Mode: Full Decoding Product Size :46*32*19mm Compatible with for Sony A7, NEX-5, 5R, 5T, 5TL, a5100, a5000, a600 etc Package Includes: 2 Pieces NP-FW50 DC Coupler (5.5mm*2.1mm) KTT060419472945.Application: For Sony A7, A7II, A7R, A7RII, A7S, A7SII, A7MII, A3000, A5000, A5100, A6000, A6300, A6500, A33, A35, A37, A55, NEX3, NEX5, NEX7, RX10, etc. 2 Pieces NP-FW50 DC Coupler (5.5mm 2.1mm). Compatible with for Sony A7, NEX-5, 5R, 5T, 5TL, a5100, a5000, a600 etc.