The makers of the popular string lights, which you can “paint” with color using a mobile app, are about to launch an accessory that lets the lights pulse to your music.

Twinkly has been making smartphone-controlled string lights and decorations for some time now, but earlier this fall, the company added HomeKit ...

Should This Thing Be Smart? Christmas Lights Edition. Twinkly puts you, the aspiring arboreal lighting designer, in the proverbial driver’s seat.