CKK Electronic is a Beijing-based guitar effects pedal maker that grew out of the Sinvertek brand, founded in 2008 by designer Wu Nan. After years of developing Sinvertek-branded preamps and studio effects, Wu Nan launched CKK Electronic in 2012 as a line of affordable, analog-focused stompboxes aimed at delivering boutique-quality tone at accessible prices. The classic CKK series debuted in 2014 with 15 pedals spanning the full spectrum of common effects types, and the range has been refined and upgraded over subsequent iterations.

The CKK lineup covers overdrive, distortion, fuzz, compression, chorus, phaser, tremolo, delay, reverb, and envelope filter effects. Notable models include the Gears compressor, with its mix knob and voice switch for frequency-dependent compression; the Water Drop analog chorus, built around BBD chips; the Robot Φ phaser, featuring a resonance knob for deep frequency modulation; the Frogman vintage optical tremolo, modeled after the Fender Deluxe Twin; the Soul Echo tape delay; the Space Station Pro digital delay and reverb; and overdrive circuits like the Scream Drive, Gambler, and Lunar OD Special. The brand's higher-end sibling, Sinvertek, produces limited-run pedals such as the MGAT Real Amp Abstraction preamp series and the hand-tuned Scream Honey overdrive, with Wu Nan personally voicing each unit.

CKK Electronic has 11 products cataloged on Equipboard, including Overdrive Effects Pedals, Delay Effects Pedals, and Compressor Effects Pedals. Their gear is featured by 4 artists, with the strongest followings in Rock and Latin. Notable users include Mauricio Durán, Francisco Durán, and Gem Archer.