2 PK Extended Life Replacement Battery For Sony NP-FW50 and Sony a7 a7R a3000 a7s a6000 a5100 a5000 a3000 QX1 NEX-3N NEX-5R NEX-5T NEX-7 NEX-F3 SLT-A33 SLT-A35 SLT-A37 SLT-A55V RX10 II RX10 III Starter kit includes two 2300mAh high capacity lithium replacement batteries for Sony cameras. Also includes SSE Microfiber Cleaning Cloth. For the Sony NP-FW50, Sony Alpha 7, a7, Alpha 7R, a7R, a7s, a6000, a5100, a5000, a3000, Alpha a3000, NEX-3, NEX-3N, NEX-5, NEX-5N, NEX-5R, NEX-5T, NEX-6, NEX-7, NEX-C3, NEX-F3, SLT-A33, SLT-A35, SLT-A37, SLT-A55V, Cyber-shot DSC-RX10, RX10 II. This is a great starter kit for a photographer who is just starting out and wants to make sure they're always ready. Batteries come with a 1 year warranty.