Discussion in 'Vehicles' started by DJ-916, Jun 3, 2016. DJ-916 Member Location: Sacramento. I'm thinking about getting an older beater for driving and I don't see any limitations for mileage in either lyft or uber's requirements but I've ran across a couple random posts about a 100,000 mile limit. Does anyone know if there is such a limit for either company? Thanks!
Audible sound is the sound which is between 20 Hertz to 20000 Hertz and can be heard by human beings, whereas Inaudible sound may be below 20 Hertz or above 20000 Hertz and thâ¦is can't be heard by human beings.
1 A high-pitched whistle used to train dogs, typically having a sound inaudible to humans. Example sentences. 1  He kept blowing a dog whistle in a fruitless attempt to coax Molly out. 2  Similar in concept to a dog whistle, it alters the report to an ultrasonic pitch the human ear cannot detect.