I receive this as a Christmas present after -lrb- foolishly -rrb- put it on my list . let 's just say I regret cost my brother $ 65 . right out of the box , it do not work . I adjust the battery , play around a bit with the usb receiver , and it finally connect . after about 10 minute of use , it disconnect . repeated step 1-2 , use for a hour this time , and it stop work again . so I call tech support and get the answering machine . 10 time in a row , on 10 different day . email they . never get a response . my advice be to spend you money more wisely and get a better product . this one be not it .