i posted in the equipment forum... but didn't get much replies... so i'm posting here. i got my yong nuo ctr-301p transmitter and reciever set today.... they work amazing! you just attach the receiver to your flash and the transmitter to the hotshoe of your camera... turn them on and shoot away. the receivers have a nice slide out cover for the batteries... the transmitter doesnt. you have to unscrew the bottom piece, two screws placed on one end, and lift it open. i tried that... got the screws out, and when i lifted it, only the unscrewed end lifted, the other end, where the battery is, stayed put... and i put a small crack on the transmitter 'cause i pulled too hard. anyone know how to get the bottom piece off so i can access the battery?