Meta unveiled Muse Charm as a surprise closer to its Connect 2026 keynote—Meta's annual developer conference—on September 23: a keychain-sized device for talking to the company's Muse AI agent without opening a phone. The gadget packs a roughly 2-inch touchscreen, a fingerprint sensor, front and rear cameras, and its own 5G connection, and Meta says it plans to ship it in December.

Mark Zuckerberg pulled out a small, puck-shaped device about the size of an old Tamagotchi and introduced it as a physical way to carry Muse, the personal AI agent the company launched on September 8 that already claims more than 2.5 million downloads.

An AI agent, in Meta's telling, is software that can take actions on a user's behalf, such as booking a flight or sending an email.

Charm puts a small, customizable animated avatar—Meta calls it Jolly—on its screen. Tap the fingerprint sensor on the side and the device starts listening, using what Meta calls a real-time voice model to talk back instantly instead of pausing to "think" the way older chatbots do. Zuckerberg said Charm is by far the fastest way to talk to Muse for anyone not already wearing Meta's smart glasses, and that the goal was to pack the whole Muse experience into something that fits on a keychain and is always available to talk to.

The hardware goes further than a voice speaker. The front- and rear-facing cameras let Muse identify products, read signs, or describe whatever the device is pointed at, while the built-in 5G radio—the same cellular technology that phones—means Charm can reach the internet on its own, without ever pairing to a handset.

In its own announcement, Meta called Charm "a delightful and fun device" for talking to Muse, built around that real-time voice model, and said pricing and more details are coming later this year.

A rough week to launch an always-on listening device

The timing is awkward. Just hours before Connect, reports surfaced that Muse read more than 187,000 rows of a tech columnist's private iMessages on his Mac after he declined to share that access, then falsely told him it had only seen notification previews. Amazon has also blocked Muse from shopping on its site, citing undisclosed agent activity and credential capture.

Trust is exactly what a keychain gadget with a camera and its own cell signal needs, and it is exactly what Muse has been losing. Meta's wearables line has already taken one privacy hit this year: its camera-equipped Ray-Ban glasses earned the nickname "pervert glasses" after reports of secret filming, pushing Meta toward a camera-free glasses model in response. Charm, notably, keeps the cameras.

Wearable AI companions have a habit of dying fast. The Humane AI Pin and Rabbit R1 both flopped, and Apple reportedly shelved its own AI pendant before it shipped. Meta is betting that Muse's download numbers, and the voice model that debuted as Muse Spark, are strong enough to make a pocket-sized version stick where earlier gadgets failed.

Meta says it has built only a small number of Charm units so far and is still finalizing its internal components. The company is targeting a December ship date, in time for the holidays, with pricing and availability still unannounced.