BP-131xh : 7.2 volt 2500mAh long-life rechargeable Ni-MH battery for ICOM radios. Fits the IC-W21A, IC-2GXA, IC-2GXAT, IC-V21AT, IC-M10 etc. Includes built-in microphone. Pack is approximately 2.75" tall. It can be re-charged thru the radio (if radio is so equipped), or with a desktop charger (such as EMS-79). Choose BLACK color or GREY color when ordering. These battery packs are exclusively made in the USA by BATTERIES AMERICA.