Founded in 2000 by Siwei Zou — a composer and conductor trained at the Shanghai Conservatory of Music — sE Electronics designs and manufactures microphones and studio accessories at its own facility in Shanghai, China. The brand name "sE" is a nod to the art of sound engineering. Under the leadership of Zou's daughter Ling, who took over day-to-day operations in 2008, the company maintains full in-house control over its design, engineering, and production processes, using no OEM parts.

sE Electronics is best known for inventing the Reflexion Filter in 2006, a portable acoustic isolation device that became an industry standard and spawned an entire product category. The company's microphone lineup spans large-diaphragm condensers like the sE2200 and sE4400a, the V Series dynamics (including the V7, V KICK, and V BEAT), ribbon microphones, and the DynaCaster broadcast-style dynamic mic with its built-in +30dB preamp. A standout line is the Rupert Neve Signature Series, a collaboration with legendary audio designer Rupert Neve that produced the RNR1 active ribbon microphone, the RN17 small-diaphragm condenser, and the RNT tube condenser — each featuring Neve-designed transformer-coupled electronics paired with sE transducers.

The V7 dynamic microphone has gained widespread adoption on concert stages, with artists including FINNEAS, Father John Misty, Chris Stapleton, and Fleet Foxes making it a go-to live vocal mic. sE microphones are used across genres from pop and rock to classical and broadcast, and the brand has built a reputation for delivering studio-grade performance at accessible price points.

sE Electronics has 118 products cataloged on Equipboard, including Condenser Microphones, Dynamic Microphones, and Acoustical Treatments. Their gear is featured by 192 artists, with the strongest followings in Rock, Pop, and Electronic. Notable users include Brainpower, Alex Rüdinger, and Simon Crahan. sE Electronics's catalog spans the full price spectrum — from entry-level options to high-end flagships.