Battery and charging: 800 mAh lithium ion battery. Fully charges in 23 hours and provides 45 hours of continuous music playback for gatherings or listening. Connectivity options: Bluetooth 5.3 for wireless audio, plus support for TF card, 3.5 mm audio cable, and USB drive (U disk). Compatible with most Bluetooth devices and flexible enough to match your playback needs. Vintage 1877s design: inspired by the classic 1877 phonograph, combining nostalgic aesthetics with modern technology. Meticulous craftsmanship and a sleek silhouette make this speaker a standout decor piece as well as a functional audio device. Sound quality and performance: hifi style speakers deliver crystal clear sound with stable Bluetooth connectivity across genres from pop to jazz. Built to provide reliable performance for everyday listening. Use scenarios: At home or during small gatherings: enhances social spaces with reliable wireless and wired playback options. Outdoor or travel use: portable enough for picnics or onthego listening with multiple source options. Desk or bedside companion: integrates vintage charm into your workspace or living area while delivering clear audio. Key attributes at a glance: extended battery life, multiple playback options (Bluetooth, TF card, 3.5 mm input, USB drive), retro 1877s design, and modern Bluetooth 5.3 enabled for stable connection and clear sound.