Replacement battery for IHDP01A. Specifications: 900mAh, 3.7V, Li-ion. Compatible with: IHDP01A, IHDP01A Portable HD/FM Radio Player, INSGINIA NS-HD01A. Replaces: AudioVox ICP463450A 1S1PMXZ, INSGINIA ICP463450A 1S1PMXZ. Audiovox replacement battery designed for DAB Digital devices. Built to OEM specifications for reliable performance.