Vintage design with knob control for tactile, straightforward operation Clear, immersive audio with 360degree surround fidelity sound Onekey hands answering: answer calls directly from the speaker, regardless of playback mode Multifunctional audio: playback from the speaker, memory card playback, USB playback Key benefits and practical attributes Functionality at a glance: combine casual listening with convenient phone calls without switching devices. Playback versatility: supports multiple sources for flexible use in different settings. Easy to operate: knob adjustment provides precise control with a retro feel. Audio performance: designed to deliver broad, immersive sound coverage suitable for small to medium spaces. Compatibility in practice: supports memory card playback and USB playback for versatile media access. Use scenarios Home entertainment: place in a living room or kitchen to enjoy music from memory cards or USB drives, with rich 360degree sound and simple knob control. Desk or office setting: use as a desktop speaker for background music or presentations, while staying ready to answer calls hands at a moment's notice. Small gatherings or study space: create an ambient audio environment with wide coverage, and switch between playback modes without interrupting conversations.