1. 600MAH/800MAH can be chosen 2. for Nokia mobile phone 3. for mini portable speaker 4. long playing time mobile phone battery---for Nokia and mini speaker BL-4C Features ... , 6101, 6102, 6102i, 6103, 6125, 6126, 6131, 6136, 6170, 6260, 6300,6300i, 6301i, 6600 fold, 7200, 7270, 7610, N80