The W8025 is a portable Bluetooth speaker specifically designed for secure attachment to sports and protection helmets, allowing you to enjoy audio while staying mobile. It delivers 5W of output power with a frequency response ranging from 80 to 20,000 Hz, ensuring a clear sound profile for both music and calls. This device is compatible with iOS and Android systems via Bluetooth v4.0, though it also offers versatile wired options through a USB port, a 3.5 mm audio jack, and a TF card slot for standalone playback. Constructed from robust black plastic, the speaker features a compact design built to withstand outdoor conditions. You can easily manage your media and phone conversations using the integrated multifunctional control button. A built-in high-capacity battery powers the unit, making it a practical choice for cyclists or athletes who want a hands-free audio experience during their activities.