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Genuine Freeplay replacement internal (hard wired) rechargeable battery for the Freeplay Eyemax radio or Freeplay Ranger radio (3 x AAA NiMH 3.6V 600mAh). Can safely be used to replace older models that use 3 x AA 3.6V 1300mAh packs. Tools and DIY skills are required to fit this item. Please note that due to the self-install nature of this item, returns are not accepted.