232093 ⎘
Public address systems Electric megaphones
TRANSMITTING MESSAGES TO A DISPLAY DEVICE BASED ON DETECTED AUDIO OUTPUT
#2SPEAKER MEGAPHONE
#3Transmitting messages to a display device based on detected audio output
#4Volume control over shared trunk lines in intercom systems
#5Transmitting messages to a display device based on detected audio output
#6Volume control over shared trunk lines in intercom systems
#7Integrated karaoke device
#8Integrated karaoke device
#9Wearable sound system with configurable privacy modes
#10Audio transmission system
#11Wearable sound system with configurable privacy modes
#12Self-adjusting spherical speaker
#13Integrated karaoke device
#14System for supporting emergency vehicle using drone
#15Modular voice amplification system for protective mask
#16Audio control system and electronic device using same
#17Megaphone
#18System for targeting directed acoustical energy
#19HEARING ASSISTANCE SYSTEM
#20CONDENSER MICROPHONE ASSEMBLY WITH FLOATING CONFIGURATION
#21SELF-STEERING DIRECTIONAL LOUDSPEAKERS AND A METHOD OF OPERATION THEREOF
#22Wireless listening system
#23Multi-purpose speaker
#24Air-droppable loudspeaker
#25Parametric ring emitter
#26Transmitting messages to a display device based on detected audio output