Floureon 3-Pack NiMH Rechargeable Cordless Phone Battery for BT166342 BT-166342 BT266342 BT-266342 BT183342 BT-283342 Battery Type:Ni-MH / Voltage:2.4V / Capacity:400mAh Type: Replacement Battery / Reachargeable: Yes 100% Customer Satisfaction. Fast Shipping All FLOUREON&reg; battery packs comply with MSDS, RoHS and CE quality testing standards. 30 Days Money Back and 1 Year Warranty