Replacement battery fits 5 FrontRow compatible models. Specifications: 800mAh, 3.7V, Li-ion. Compatible with: FR Wearable Lifestyle, Juno ISM-01, ITM-01 pendant microphone, Juno ISM-01 Pass-Around Microphone, Juno ITM-01 Pendant Microphone. Replaces: FrontRow 450-7359-101, FrontRow 6410-00006. FrontRow replacement battery designed for Speaker devices. Provides reliable power for your device.