Hair dryer with integral stereo audio system
Half-voltage headphone driver circuit
Hand-free apparatus
Hand-free switch device for wireless intercom
Hand-held microphone apparatus with resilient stabilizing ring
Handheld electronics devices with multiple user sensory...
Handheld microphone with a shockmount system
Hands free noise canceling headset
Hands free telephone with switchable gain in the two speech sign
Hands-free amplification system
Hands-free communication method for a multichannel transmission
Hands-free megaphone
Hands-free microphone with wind break
Hands-free microphone with wind guard
Hands-free microphone with wind guard
Handsfree communication system
Handsfree system for use in a vehicle
Hanging type earphone
Hanging, positionable, speaker enclosure
Hard disk drive with self-contained active acoustic noise...