Ultralast HS-BA300 HS-BA300 Replacement Battery

3.7V; Long-lasting; 150mAh; Li-Poly; Rechargeable battery; Compatible with Sennheiser Electronic IS410, Sennheiser Electronic RI410, Sennheiser Electronic RR4200, Sennheiser Electronic RS4200, Sennheiser Electronic IS410TV, Sennheiser Electronic RI830, Sennheiser Electronic RI830S, Sennheiser Electronic RI900, Sennheiser Electronic RS4200TV, Sennheiser Electronic RS4200TV-2, Sennheiser Electronic Set 830 TV Sennheiser Electronic 500898, Sennheiser Electronic BA300, Sennheiser Electronic HC-BA300, Sennheiser Electronic NCI-PLS100H & Interstate LIT6330;