High-quality 360-degree surround sound combines classic sensibilities with retro aesthetics, featuring a small retro screen that meets the aesthetic standards of young people. Lightweight and exquisite, compact and portable, the leather handle design is durable and easy to carry outdoors. Multifunctional Bluetooth speaker: Bluetooth playback, inserted memory card playback, USB playback, auxiliary audio playback. HIFI-level sound effect 3W speaker, high-quality chip, let the good music live in your ears. 400mAh polymer battery, six hours of continuous playtime. Classic design, dial adjustment, continuously adjustable volume, the sound is yours. Tip: Playtime is related to volume, temperature, track, etc. Product Information: Function: Voice Prompt Bluetooth Type: Speaker Connection Method: Bluetooth Connection Interface Type: USB Frequency Response Range: 60Hz-15KHz Output Power: 5W Power Supply Mode: Built-in Lithium Battery Operating Mode: Button Shell Material: Metal Built-in Battery Capacity: 300-500 mA Product Weight: 0.23 (KG)