Mackie MP-240 BTA Hybrid Dual-Driver In-Ear Monitors with Bluetooth MMCX Cable

Mackie MP-240 BTA: Pro In-Ear Sound That Also Goes Wireless

The Mackie MP-240 BTA is a hybrid dual-driver professional in-ear monitor that pairs a dynamic driver with a Knowles balanced-armature driver in each earpiece and ships with the MP-BTA Bluetooth 5.0 adapter cable. That combination gives one set of earphones two lives: a wired reference for the stage, the interface, and the mixing desk, and a wireless everyday listener that streams straight from a phone or tablet. For the musician who wants studio-grade monitoring and cord-free convenience without buying two products, it is the pair that follows you from soundcheck to the sidewalk.

A Hybrid Two-Driver Design That Splits the Work

Inside each earpiece, a dynamic driver and a balanced-armature driver divide the frequency spectrum between them. The dynamic driver moves a larger diaphragm to reproduce deep, punchy low end with weight and impact, while the compact Knowles balanced armature focuses on the midrange and treble, resolving vocal detail, cymbal shimmer, and instrument texture that a single driver often blurs. A passive crossover routes each band to the driver best suited to it, so the bass stays full without smearing the highs and the detail stays crisp without thinning the lows.

The MP-BTA Adapter Cuts the Cord Without Cutting Quality

The included MP-BTA adapter replaces the wired cable at the MMCX connector and adds Bluetooth 5.0 wireless, an in-line microphone, and playback and call controls for volume, track skip, and answering calls. A built-in rechargeable battery powers hours of listening, spoken voice prompts announce pairing and charge status, and the adapter tops up over its Micro-USB charging cable. Because it swivels onto the same MMCX sockets as the wired cable, switching between a plugged-in monitor mix and wireless phone audio takes only seconds.

Up to 40 dB of Passive Isolation and a Custom Fit

The sealed in-ear housings block outside noise mechanically, delivering up to 40 dB of passive isolation that keeps stage roar, crowd noise, and traffic from bleeding into what you hear. That seal lets you monitor at safer, lower volumes because you are not fighting the room, and it keeps quiet detail audible in loud environments. A generous set of ear tips — foam, silicone, and double-flange in small, medium, and large — lets you dial in the seal and comfort that make the isolation and the bass response actually work.

Detachable MMCX Cable Built for the Road

A detachable braided cable connects through swiveling MMCX plugs and routes over the ear for a secure, microphonics-reducing fit that stays put during active performance. Because the cable detaches, a snag or a worn conductor is a simple swap rather than the end of the earphones, and the same sockets accept the wired cable, the MP-BTA Bluetooth adapter, or a replacement. A gold-plated 1/8-inch to 1/4-inch adapter and a hard molded carrying case round out a package built to survive gig bags and touring.

Who the MP-240 BTA Is For

Gigging musicians, drummers, worship teams, and content creators reach for the MP-240 BTA when they need one in-ear monitor that works wired on stage and wireless on the go. Run it hardwired into a personal monitor mixer or interface for latency-free tracking and performance, then clip on the MP-BTA adapter to take calls, stream a playlist, or rehearse from a phone. When the goal is professional hybrid-driver sound with the freedom to lose the cable, the MP-240 BTA delivers both.