Feature: 1. Astonishing Sound: The portable karaoke machine has a built-in professional tuning grade speaker, and breathtaking stereo sound with exceptional clarity and no distortion by the high-sensitivity drivers, great for home parties and outdoors. 2. Stable Connectivity: Adopts new BT 5.3 technology to ensure pairing, providing stable and 50ft long distance without obstacles. This small singing speaker also supports a memory card, USB, and AUX input connections. 3. Lights & Effects: Equipped with colorful LED lights and has an independent button to switch the lights. Different voice effects: baby, female, male, this BT party speaker provides endless fun and happiness for adults and kids. 4. Long Lasting Lifespan: Our small karaoke machine has a long lifespan with 800mAh rechargeable battery technology. It quickly charges and playing about 2-4 hours, in order to make it easy to bring the party with you wherever you go. 5. Lightweight and Wonderful Gift: This speaker is small in size and easy to carry. Whenever you go, you can easily take the karaoke machine. Comes with 2 wireless microphones, and it is also suitable for your family or friends. Specification: Color: Black Model: K18 Structure: ABS+Acrylic BT version: 5.3 Power Method: Built in battery Battery capacity: 400mAh for microphone, 800mAh for speaker Speaker power: 5W Frequency: 20Hz-20kHz Microphone pickup: back-type condenser microphone Socket type: TF/AUX/USB/TC Item Size: 9.5 * 9.5 * 8.7cm/3.74 * 3.74 * 3.43in Item Weight: 475g/16.76oz Package Size: 15 * 14 * 9.7cm/5.91 * 5.51 * 3.82in Package Weight: 550g/19.4oz. Package List: 1 * Karaoke Machine 2 * Microphones 1 * Charging Cable 1 * User Manual