New wireless sensing audio technology for bedroom esports rechargeable original KTV sleep

Connection Method: Bluetooth Connection Signal-to-Noise Ratio: ≥75dB Number of Speakers: Single Speaker Effective Distance: 10m Cabinet Material: ABS Color: White , Black  Power Supply Method: Lithium Battery Bluetooth Version: 5.3 Built-in Battery Capacity: 500mAh-800mAh (inclusive) Rated Power: 5W Rated Voltage: 5V Speaker Type: Home Speaker Additional Features: Dust-proof Has Built-in Battery: With Built-in Battery  Unit: cm           .