Small and lightweight, hook hole design, easy to carry. | Suitable for MP3, MP4, MP5, mobile phones, computers and other devices with a 3.5mm audio jack. | Built-in 180mah battery, no external power supply needed, provides one and half hours of playing time at maximum volume, or about 3 hours at 50 percent volume. | Comes with an audio cable at the bottom of the speaker. Equipped with a USB charging cable. Unique design - Retractable speaker. | Low voltage, low power consumption, power amplifier IC, pure sound quality, low distortion. | Power source type: Battery Powered

The extension rod is designed to extend the height of the tripod, making installation and use simple. | There is a 1/4 inch screw mouth at the bottom, which can be installed on a tripod or bracket. | The extension rod with 2 sections, and the length is adjustable from 25‑41cm/9.8‑16.1in, which greatly meets your different needs. | Aluminum alloy material, CNC oxidation process, with fine workmanship, which is strong and durable. | Can switch between 3/8 inch screw interface and 1/4 inch screw interface at will, no need to change screws.