The max audio level isn’t all that great either… (probably one of the things Uniden did to keep battery consumption at a minimum). If I don’t want to hold it, instead, keep it in my pocket, I have to use the earphone jack. There are external packs that will supply USB power levels (that come in different amounts of storage) you can use. I tried the LI-Ion double A batteries but they don’t seem to extend battery life much-they do allow me to carry extra rechargeable AA batteries which saves me the cost of replacing disposable batteries. Or, in a pinch I buy the Eveready LI-Ion disposable AA’s, which do give better life. (That’s where I got the idea that maybe the rechargeable ones would also, not so much!)