- Model: MP-511<br />- Ni-MH battery<br />- Please make sure the voltage of your cordless phone is strictly identical with this one before use<br /> <br />- Model: MP-511<br />- Ni-MH battery<br />- Please make sure the voltage of your cordless phone is strictly identical with this one before use<br />                                                                                                                                Dimensions: 0.59 in x 0.59 in x 2.01 in<br />Weight: 2.43 oz