Welcome to our store! Cool and cute, these speakers are perfect for sharing great sound with friends or family. With their compact and lightweight design, you can easily put them in your bag and take them with you everywhere. This USB speaker gives you an ultra-portable mini sound system, so you can enjoy music without the need for headphones or large external speakers. Power is supplied by connecting the USB power cable to almost any USB port, or by connecting to an AC adapter (adapter not included). Please note that these speakers do not have a charging function and only work via the USB port. They are suitable for use with PC, MP3, MP4, and laptops. Specifications: - Material: Plastic - Color: Black - Sound Track: Dual Track, Single Track (Optional) - Output Power: 3W x 2 - Impedance: 4 ohms - Frequency Response: 90Hz - 20KHz - Signal-to-noise ratio: ≥60dB - Distortion: ≤0.3% - Power: USB / DC5V Package includes: - 1 pair of speakers Note: Please be aware that the new type and the old type of this product will be sent randomly. Please make sure you don't mind before placing your order. 100% Satisfaction: Our customers are our top priority. If you find any product problems after receiving the item, such as damage and incorrect quantity of goods, please contact the seller immediately. We will do our best to provide you with satisfactory customer service.