The Bluetooth range is excellent. 5cm x 10. When I received them, they snapped in with the usual trickery. Wood is scratched where it is noticeable on the front. Battery life seems very good so far. Im just lucky it happened within the return period. I tried to get info about this item before purchasing, but that too was hopeless also as there were so few reviews and obvious small customer base. I normally where an 8 in open toe shoes. (See pic) The bass definitely seems to carry better and the high end seems more crisp, maybe. Took me about three minutes to hook myself together.