Features: High quality wireless BT speaker provides lossless sound quality. Suitable for enjoying beautiful music or answering hands-free phone calls. Easy to use, press the top of the speaker to turn on, rotating to adjust volume. With anti-slip mats in the botom to keep it stable in the desktop. Rechargeable and cordless, with 500mAh large capacity battery, suitable for both indoor and outdoor use. Made of aluminum alloy and plastic, excellent feeling. Concise appearance, mini size, portable and lightweight. Note: Size and color may be slightly different due to manual measurement and different lighting conditions. Thanks for understanding.