Hitech - Prismatic Gumstick Battery for Portable CD / MD / MP3 Players (NH-14WM, NH-10WM, HHF-AZ01T. Fits portable audio - MP3 / MD/ CD players. Run time is approximately 10.5 hours (30 minutes). Rechargeable up to 1000 times. Battery dimension: Length 67.0 mm, Width 17.0 mm, Depth 6.1 mm Chemistry: Ni-Mh; Capacity: 1400mAh; Voltage: 1.2V Please refer Product Description below for comparability. Shipping Weight : 0.5 lb/PC.