Capacity: 980mAh Battery Type: Li-ion Voltage: 3.7V Model numbers fit to: Sony NW-HD5 Silver, NW-HD5, NW-HD5B, NW-HD5S, NW-HD5R, Atrac AD Compatible battery part numbers: LIP-880, LIP-880PD, LIP-880PD-B RoHS approved for toxic free. CE and ISO9001 Certified for Quality Assurance. Search Tip: Press Ctrl and F keys to prompt a search dialogue box, then type in your device's model number and click 'Find Next'.