3.7V; Long-lasting; 250mAh; Li-Poly; Rechargeable battery; Compatible with VXi(TM) B250XT, VXi(TM) Blue Eagle 11 BT900, VXi(TM) Blue Parrott B250XT, VXi(TM) Blue Parrott B250XT+, VXi(TM) BT900, VXi(TM) Silverado Blue HS393 & Interstate(R) LIT2616;