Elecom Introduces GrandBass System to Its Stereo headsets Lineup – Dec 19, 2014– Tokyo, Japan (Techreleased) – ELECOM will  launch new products in mid-January in their lineup of TRS mini-plug AV stereo headsets for smartphones that feature the “GrandBass System” for intense, powerful bass in new color variations.


This is the debut of the “EHP-CS3570” series of stereo headsets for smartphones, featuring ELECOM’s proprietary “GrandBass System” allowing for deep rumbling bass and high resolution sound.

In addition to featuring a special sound driver unit with a large diameter of 13.6mm for detailed and accurate sound across a wide range, the headsets have two uniquely designed air chambers, that simultaneously maintain a large volume of sound and improve density, achieving intense bass that is both deep and sharp. Also, thanks to their “front-oriented magnet construction”, which places magnets on both sides of the trembler, loss of magnetic flux from the drivers is minimized, and vibration speed maximized, resulting in a more powerful sound.

The ear caps come in three sizes so you can pick the perfect fit. They are newly designed “deep fit ear caps” with inflated ends that make them more airtight, keeping in that powerful bass sound. Also, the hardness of the ear caps has been changed, both inside and out, improving not just the sound and fit but increasing air tightness as well, thanks to a two-stage depth-adjusted construction.

Regarding comfort, both lines use “earplug type” earphones that fit snugly in the ear and have good noise-canceling, meaning that sound will neither spill out nor will users be bothered by surrounding noise. The flat cables are easy to wind up and prevent tangles, and the cable length is a comfortable 1.2m. A cable keeper for the excess cable is included, as well as a handy pouch for carrying.

The “EHP-CS3570 Series” for smartphones connects via a 3.5mm TRRS mini plug. Not just for enjoying music, the headset also includes a condenser microphone for phone calls. The remote control switch that houses the microphone includes a slide switch for volume control, as well as a switch for answering or ending phone calls.

The headsets come in luxurious white and pink and both feature a stylish design with flat cables that shows off the quality of the metal and rubber materials.

Model number On-sale date Countries and regions
Mid-January 2015 Korea, China, Taiwan, Hong Kong, Singapore,
Saudi Arabia, EU, Japan