EZOPower 2-Pack NP-BX1 Battery + Compact Camera Case Bag w/Strap for Sony Cyber-shot DSC-HX90V, HX60V, HX50V, WX500, WX350, WX300, RX100 IV/III/II/I Battery Voltage: 3.7 V, Capacity: 950mAh, Battery Type: Lithium-ion. Number: EZCBA34 Integrated microchip prevents overcharging & lengthens battery life. Made with info-chip, which can show remaining time on the camera's LCD. It also can be charged by Sony original charger. Case with Convenient belt loop, detachable carrying strap and inside pocket for SD memory card and Battery. ( Inner size: W x L x H : 3.25in x 2.0in x 5.25in.) Package include 2 Pack EZOPower NP-BX1 Batteries, and an Digital Camera Pouch Nylon Case