The Cerepros 2-Pack Replacement Battery will replace your battery and headset models. This battery is not the original but will work just like it. Replacement for battery models: BT-1021 BT-1008 BT-1016 BT-1025 And More. Replacement for headset models: D1361 D1361BK D1364 D1688-2T D1688-3 D1688-4 D1688-5 D1760 D1760-2 D1760-2W D1760-3 D1780 And More. The battery is AAA, 300mAh, 2.4V DC and the package comes with two batteries. If you ever need this type of battery, this is the product to buy.