1. **Powerful Sound Penetration** The Fedkara Karaoke Machine provides relatively high - fidelity sound quality, capable of outputting relatively powerful and well - balanced sound with relatively little distortion. As a singing toy for boys and girls aged 3 - 12, its volume is relatively loud. 2. **Long - lasting Battery Life and Portability** It has a built - in rechargeable battery, which can offer about 5 - 10 hours of entertainment. The portable speaker has a compact size of around 2.8 * 2.8 * 2.8 inches, and the microphone handle has a diameter of about 1.4 inches, which is easy for a 3 - year - old girl to hold. The edges and corners of the karaoke machine and the microphone are soft and smooth, making it relatively safe for boys and girls aged 4 - 8 to use. 3. **Fun Voice Changer and LED Lighting Effects** This mini karaoke machine toy comes with a built - in LED light show that can make a room seem like a concert hall, suitable for the whole family to play together. It can help enhance children's singing ability and promote parent - child interaction. It offers 4 fun voice - changing options, bringing more fun to children. 4. **Easy to Use** When you turn on the children's karaoke machine, the included wireless microphone will connect automatically. It is a toy that children can easily learn to use. The stable Bluetooth technology enables easy connection to smartphones or tablets, supports various applications, and can read TF cards and USB flash drives, providing a variety of entertainment methods. 5. **Ideal Gift for Children's Creativity** This karaoke machine toy is practical, entertaining, and interactive. It is a suitable toy for boys and girls aged 3 - 12. It can inspire children's love for music and is a good gift for back - to - school, birthdays, New Year, and Children's Day!