muffler design noise reduction

-canceling headphone ETEK Wireless Earbuds, Bluetooth with Mic, Half-In-Ear for Clear Calls, Deep Bass, Waterproof Produc...

...r 30dB. It is applicable for desiccant dryer machines with working pressure under 1.0Mpa. The bypass relief valve will protect the machine's...

... 2.5'' Inlet 2.5'' Outlet About this item About this item ◆【Widely Use--2.5 Inch Inlet 】 This is a exhaust , universal fits an...

BSLM subminiature Type Brass of G thread , Elimination * One touch quick push-in fitting * Body material brass nickle plated * Housing m...

...barrier, or acoustical barrier) is an Sound insulation and reductionexterior structure to protect inhabitants of sensitive land use ...

... unit, to ensure the highest quality. 3.3.7v lithium ion battery,it was recharged without replacing batteries. 4.two modes of operation, to choose ...

1. Premium zinc coated steel sheet as housing material; 2. Quality sponge ensures circular fan noise be removal; 3. Reasonable factory cost prices; 4....

... Product Description for office buildings, this one inch metered valve with plastic stem emphasizes quiet operation....

... double wireless charging no delay About this item: ANC The earphone completely fits the ear, isolating most ...

... of roads, highways, elevated composite roads and other sources. It is divided into a purely sound-reflecting reflective sound barr...

... Headphones Product description 1. Creative products, novel and unique , set a variety of functions comprehensive in one 2.The...

... Headphones Product description 1. Creative products, novel and unique , set a variety of functions comprehensive in one 2.The...

...r spaces with our Fiberglass Acoustic Ceiling Panels, expertly to deliver exceptional acoustic performance while adding a touch of eleganc...

... and Description: Our Advanced Wood Slat Acoustic Panels are a step ahead in combining control with modern aesthetics. ...

... Product Description: Headphone Earpads provide excellent and comfort for users. It comes with multi-color choice, s...

... Audio Isolator for Eliminating Current Sound 1.Product Description Stereo Sound Audio Isolator is a professional de...

... sensor wiring harness with insulation , it can effectively suppress electromagnetic interference from external interference ...

... sensor wiring harness with insulation , it can effectively suppress electromagnetic interference from external interference ...

... for the front position of your Toyota vehicle, providing reliable braking performance. This set of brake pads is a crucial component for e...

... Barrier Fence System barrier also named sound wall, sound isolution fences, sound barrier, or acoustical barrier, it is...