Features: NP-F970 to NP-FW50 battery adapter, turn NP-F970 series batteries into a replacement for NP-FW50. Largely prolong shooting camera shooting hour. With an indicator light, red for low power condition. Durable aluminum alloy battery plate, with protective rubber on the back. Comes with 1/4 screw hot shoe mount, can be mount on camera/rig. Compatibility: For Sony NEX 5 series(Alpha NEX-5, Alpha NEX-5A, Alpha NEX-5C, Alpha NEX-5CA, Alpha NEX-5CD, Alpha NEX-5D, Alpha NEX-5H, Alpha --NEX-5CH, Alpha NEX-5K) --NEX 7 series --DSC-RX10, DSCRX10/B, WW808143 --a7(Alpha a7, a7R, ILCE7/B, ILCE7K/B, ILCE7R/B, ILCE-7, ILCE-7R) --a7R / a7S / a7II / a3000 / a5000 / a5100 / a6000 / a6300 / a7s II / a7m II