Ultrasonic directional audio speaker
Outdoor display + ultrasonic directional audio speaker (all-in)
Outdoor display + ultrasonic directional audio speaker (all-in)
Diamond-shaped LED screen + ultrasonic directional audio speaker (sound and light integrated)
Diamond-shaped LED screen + ultrasonic directional audio speaker (sound and light integrated)
Ultrasonic directional audio speaker(desktop)
Ultrasonic directional audio speaker(desktop)
Ultrasonic directional audio speaker(Ceiling)
Ultrasonic directional audio speaker