This earphone will glow without any Battery after it absorbs the light.\nSo if it doesn't glow, please take it to the bright place for a few hours or put it under the light for about 10 minutes,then you can see it glow when you take it in the dark place or at night.\n1).Different colors in the daytime, but at night the light effect is the same, showing green luminous effect. If the luminous effect is not very good, recommend light irradiation, the luminous effect will be very good\n2).In the first use,please put it near by light or under sun for some moment,then it will glow in the dark\n \nSpecifications:\n \nFrequency: 20-20.000 Hz\n \nSensitivity: 106dB\n \nImpedance: 16 Oh\n \nCable Length: 1.2m\n \nPlug: 3.5mm\n\n• Function:For Mobile Phone,Sport,For Routine Office Work,For Internet Bar,Common Headphone,Supports music,for Video Game,Noise Cancelling,HiFi Headphone,Portable,For iPod\n• Support APP:No\n• Connectors:3.5mm\n• Support Apt-x:No\n• Support Memory Card:No\n• Line Length:1.2m\n• With Microphone:No\n• Resistance:9Ω\n• Style:In-Ear\n• Plug Type:Line Type\n• Sensitivity:123dB\n• Vocalism Principle:Other\n• Volume Control:Yes\n• Is wireless:No\n• Active Noise-Cancellation:Yes\n• Frequency Response Range:8-25000Hz\n• Wireless Type:None\n• Waterproof:No\n• Communication:Wired\n• Control Button:Yes\n
