This reliable Ni-MH battery is specifically designed to fit the Flx and Revolabs models
L75 Evolution
Specifications: Ni-MH technology with a power output of 28
Hiab 2055112
High Capacity: With a powerful 2000mAh rating
Li-Polymer Battery fits Sennheiser, Is 410, Is410, Is-410 3.7V, 150mAh Rapoo Keyboard Battery This reliable Ni-MH battery isLi Polymer Battery fits Sennheiser, Is 410, Is410, Is 410 3. 7V, 150mAh Upgrade your audio experience with the high performance Li Polymer Battery designed specifically for Sennheiser headphones. This reliable battery ensures that you can enjoy your favorite music and podcasts without interruption. Key Features: Compatibility: Fits a wide range of Sennheiser models including: Is 410, Is410, Is 410 Is410 TV, Is4200, Is 4200 Ri 410, Ri410, Ri 410 Rr