1 pc. Portable Speaker, Mini Wireless Speaker with AUX Audio Interface Rechargeable Mobile Phone Speaker Line-in Speaker with Clear Bass for Laptop Phone Tablet PC MP3 Welcome to my store! 【Mini Compact Design】- Adopts a mini compact design, the speaker's size is only 10cm * 10cm * 10cm, which is equivalent to the size of an adult's palm and can be easily placed in a bag or pocket, allowing you to enjoy music anytime, anywhere. 【Clear Sound Quality】- The line-in speaker uses a bass vibration film, which can enhance the speaker's amplitude elasticity, making the sound more powerful, and the sound output is clear and loud, which is 4 times or even higher than the sound from your mobile phone. 【3.5mm AUX Audio Interface】- Designed with a 3.5mm AUX audio interface, no need to download an APP or connect to Bluetooth, just plug in and play without waiting, which is compatible with all electronic devices with a 3.5mm audio interface such as smartphones, tablets, laptops, personal computers, MP3, MP4, PSP, etc. 【Long Working Time】- Built-in 350 mAh rechargeable battery and equipped with a USB charging cable, you only need about 40 minutes to fully charge it, and you can use it for 3-4 hours (battery life depends on the volume level). There is an indicator light in the charging port; when charging, it will be red, and the light will turn off when fully charged. 【Easy to Use】- The high-speed polished ABS shell is matched with a tightly fitted metal sealing ring, which feels smooth and comfortable. You just need to plug the mini portable speaker directly into the electronic device with a 3.5mm interface and press the power switch on the top to start playing music successfully, which is very convenient to use. 100% Satisfaction - Our customers are our top priority. If you find any product issues after receiving the goods, 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.