Odec 2.4V 1000mAh Replacement Cordless Phone Battery for Uniden BT1011, 4 Pack 400mAh high capacity and up to 500 life cycles ensure longer run time and more lasting battery life Made of high-quality cell, providing higher performance in powering electronic pen and other small electronics Recyclable and environment-friendly, Ni-MH battery does not contain high toxicity of cadmium More efficiency in charging and discharging, and almost no memory effect Package includes 4 Pack AAAA Ni-MH Rechargeable Batteries, User Manual, Battery Case, 30-Day Money Back Guarantee and 24-Month Warranty