An earcup assembly 11 for a headset 10 comprising a housing having a first side adapted to engage the head of a user when in use and a second side opposite thereto. A recess provided in the second side of the housing receives and stores a battery. A battery door 14 is arranged to slidably engage the...http://www.google.fr/patents/US20080069391?utm_source=gb-gplus-shareBrevet US20080069391 - Battery door
