Replacement battery fits 44 ALBA compatible models. Specifications: 1200mAh, 3.7V, Li-ion. Compatible with: Caseroxx 1100, Radioddity RF23, RADIWOW R-108, ADOC K1, ADOC K4, Dynavox FMP3 and 38 more compatible models. Replaces: Evolveo EP-500, Navon BT60, First 523450AR 11-01, Avus MMDR 12, Avus Verdit, Evolveo EP-501. ALBA replacement battery designed for Mobile/SmartPhone devices.