Exell Wireless Mouse Battery 3.7V 600mAh Li-Ion Fits Logitech G930, Gaming Headset G930, Headset G930, MX Revolution Replaces Logitech 533-000018, F12440097, L-LY11 Voltage: 3.7, Amperage: 600mAh, Chemistry: Li-Ion Length: 1.710, Width: 1.470, Height: 0.280 Exell Battery Remote / Car Alarm / Lantern