SummerTones is a music technology company based in Delaware that designs compact, portable instruments aimed at lowering the barrier to music-making. It was founded by product designer Feifei Yu with a focus on approachable, pocket-sized devices pitched at beginners, hobbyists, and on-the-go musicians rather than traditional keyboard players.

The brand's flagship product is the EASYPLAY 1s, a pocket-sized MIDI keyboard with a 25-key 3x5 matrix layout, a built-in Bluetooth speaker, and a library of preset instrument sounds spanning a C3–C8 octave range. The device is DAW-compatible, supports semitones, and ships with interchangeable keycaps. SummerTones has since expanded the EASYPLAY line with additional models, including the EASYPLAY MEOW, and packages its products alongside other interactive music and play devices under the affiliated CubyFun brand.

SummerTones first gained traction through a Kickstarter campaign for the EASYPLAY 1s, which drew over a thousand backers. The company's positioning emphasizes portability, MIDI integration with mobile and desktop software, and making basic music creation accessible outside of full-size keyboard and piano formats.

Summer Tones has 1 product cataloged on Equipboard, including Portable & Arranger Keyboards.