About this item Suitable for all iPhone models (please see Picture No. 7 for reference) Bluetooth Speaker - high-fidelity sound quality with bass compensation design, making listening to music feel like you're at a live performance. The subwoofer technique provides enjoyable and perfect sound quality for your music experience. Retro Radio Look with Handle - Lightweight & Convenient - Easy to take everywhere! Rechargeable Battery with USB cable: can play for around 4 hours on a single charge. Built-in USB port allows you to plug in your charger, ensuring you can maintain power on the go. (This version supports use with a thin phone case) Bluetooth Matching: Turn on the power, search for the Bluetooth connection name PTH-800 or TV-Q02 on your mobile phone, and when the connection is successful, you will hear a prompt sound and the blue light will remain on. Product dimensions: 3.94'D x 7.68'W x 3.31'H.