Input voltage: 5V / 0.5A Frequency range: 50Hz - 20KHz Standard specification: V2.1 + EDR machine signal to noise ratio: － 75dB Battery capacity: 2000Amh Product size: 95 x 95 x 122mm Lighting power: 2.4W Touch dimming: support audio 3.5 interface: support (no need to connect through the Bluetooth device computer and mobile phone) . Lasting lighting: 10 hours touch light: support three stalls white / colorful lights (long time to touch the colorful switch) . Light: RGB + white light Main material: ABS / PP high temperature flame retardant materialTF card: support .