ESI Xkey 37 – ultra-slim MIDI controller with aftertouch The ESI Xkey 37 is a professional MIDI controller that combines remarkable portability, sleek design, and top-quality performance. Equipped with full-size dynamic keys with polyphonic aftertouch, it is the perfect tool for musicians, producers, and composers who value expressive playability and compact gear. Whether you’re in the studio, on stage, or on the go – the Xkey 37 delivers everything you need.

Product features 37 full-size keys with dynamic sensitivity and polyphonic aftertouch Ultra-thin design – only 16 mm thick Durable anodized aluminum housing – lightweight and stylish Pitch bend, modulation, sustain, and octave shift functions via touch-sensitive buttons USB-C powered – no need for external power supply Fully compatible with Windows, macOS, iOS, iPadOS, Android, and Linux Mobility meets professional functionality The ESI Xkey 37 is designed for musicians who need reliable gear on the move. Its anodized aluminum casing not only gives it an elegant look but also provides extra durability. Thanks to its compact size and USB-powered design, it’s a perfect portable companion for creative work anywhere, anytime.

Use cases The Xkey 37 is an excellent choice for those in need of a professional yet compact MIDI controller. Perfect for electronic music production, composition, arranging, and live performance. The integrated polyphonic aftertouch lets musicians express subtle nuances with precision, making it a truly expressive instrument.

Technical specifications Dimensions: 553 x 135 x 16 mm Weight: approx. 1 kg Power supply: USB bus-powered Port: USB-C Compatibility: Windows, macOS, iOS, iPadOS, Android, Linux Aftertouch: Polyphonic Key type: full-size, dynamic Materials and construction The controller’s body is made from anodized aluminum, ensuring both aesthetic appeal and structural durability. The keys are ergonomically designed to offer a comfortable and responsive playing experience.

Included in the box ESI Xkey 37 MIDI controller Xcable adapter (DIN 5-pin, sustain, expression) USB-C to USB-A cable Software licenses for: Bitwig Studio 8-Track, Steinberg Cubasis LE (iOS), WaveLab LE Summary The ESI Xkey 37 is a versatile and elegant MIDI controller that will meet the needs of even the most demanding musicians. It's an excellent option for those who value portability, aesthetic design, and expressive performance.