1. Product Type: Karaoke Machine - Material: Plastic, Electronic Products 2. Speaker Dimensions: Approximately 8x7.2x6.5 cm / 3.1x2.8x2.6 in - Microphone Dimensions: Approximately 13.5x3x3 cm / 5.3x1.2x1.2 in 3. Speaker Bluetooth Version: Bluetooth 5.3 - Speaker Diameter: Approximately 57 mm/2.24 inches - Speaker Power: 6W - Speaker Operating Voltage: 3.7V - Speaker Frequency Range: 20Hz - 20KHz - Speaker Reverb: Rear Sound Effect 0Dx_xa.0 D_ 4. Memory Card Slot: The speaker's memory card slot supports a maximum memory of up to 512G (excluding 512G). 5. Microphone Charging Time: Approximately 2.5 hours - Battery Type: The speaker has a built - in 1200mAh polymer lithium battery, and the microphone has two built - in 400mAh polymer lithium batteries (including). 6. Wide Coverage: Three small - volume magnetic speaker sound - emitting devices can fully cover an area of 200 square meters. Whether the speakers work alone or for karaoke entertainment, it offers a brand - new experience. 7. Excellent Sound Quality: The portable Bluetooth karaoke machine is equipped with a new - generation karaoke microphone. The treble is clear, the mid - range is powerful, and the bass is rich. 8. Dynamic Sound: The portable Bluetooth karaoke machine uses an advanced digital processing chip to improve the sound. You can also enjoy excellent KTV sound effects at home. 9. KTV Function: Connect to the TV and mobile phone karaoke via Bluetooth. With good sound and lots of fun, having a private KTV singing experience is just that simple. 10. Multi - function: The karaoke machine supports Bluetooth connection, memory card music playback, USB OTG with microphone, karaoke amplification function, reverb sound function, and headphone output function. 11. Package Contents: - 1 x Karaoke Machine - 2 x Microphones - 1 x Charging Cable Note: Manual measurements, please allow for errors.