Builtin songs and recording: Three builtin songs plus a recording feature that lets you capture and playback sound messages. Material and design: Made from ABS plastic with a vintage retro tape recorder aesthetic; available in multiple color options to suit any collection. Function and performance: Serves as a keychain, car key pendant, or backpack decoration; compact, durable, and enhanced with a relaxing music box feature for everyday enjoyment. Personalization and audience: Ideal for retro enthusiasts, and fashionforward trendsetters who want a unique accessory that expresses their individuality. Use scenarios: Everyday carry: Attach to your keys to enjoy builtin tunes or record a quick message for playback. Car key accessory: Clip to your car keys for a stylish, distinctive pendant. Backpack or travel accessory: Add to a backpack or bag to bring retro charm plus a simple musical feature on the go.