作者: Michael L. Charlier , Tom Gitzinger
DOI:
关键词: Cellular telephone 、 Engineering 、 Transducer 、 Coil spring 、 Microphone 、 Electrical engineering 、 Telecommunications
摘要: A holster ( 10 ) for a telecommunication device 12 ), such as cellular telephone or wireless telephone, includes housing 14 adapted to removably support the ). The also an earpiece assembly 52 including at least one transducer, earbud 53 microphone 54 and cord 56 depending from transducer 53, is extendable retractable relative further extension/retraction 32 having spool 34 taking up portion of when retracted coil spring 35 rotate can electrically couple