Compared with directly using the Mobile phone, radiation is reduced by more than 1000 . Compared with using ordinary headphones, radiation is reduced by more than 60 . Compared with using a Bluetooth headset, radiation is reduced by more than 20 . Anti-radiation Earphone radiation levels is 30 lower than requirements of the Hygienic standard for environmental electromagnetic waves.The monaural headset has a part of flexible air tube is more convenient to use during driving and sporting. Professional audio-visual, cut off the noise, the sound quality is fidelity. The product is from electromagnetic, more environmental and have anti-radiation function.The product with a button to control the phone, put one time to receiving, hang up calls and pause music; put two to the music playing during music pausing; put two directly to switch to the song. Stay from the electromagnetic, safe driving, convenient. Flexible, to prevent twisting, durable. The product suitable for IOS and Android devices via regulating switch.3.5mm standard plug suitable for main mobile phone; Air spring conduit put an end to cell phone radiation. Magnesium alloy CNC precision machining speaker sound unit; Advanced silicone earplugs wear comfortable and healthy.Built-in microphone and comes with headphone volume adjustment function,adjust the volume and telephone chat is convenient. / hang up button (you can also play / pause music), supports more than 80 percent of the mobile phone. New "smart switch mode (I / N)" module that allows you to farewell to switch wiring , truly all-brand mobile phones universal.Function: For Mobile Phone,Common HeadphoneSupport APP: NoFrequency Response Range: 20-20000HzVocalism Principle: OtherActive Noise-Cancellation: NoIs wireless: NoSupport -x: NoVolume Control: YesSensitivity: 102dBSupport Memory Card: NoWireless Type: NoneWaterproof: NoCommunication: WiredWith Microphone: YesControl Button: YesResistance: 32 ohmStyle: Ear HookPlug Type: Line TypeConnectors: AUXFunction: Microphone, Voice control, Supports music, Noise Cancelling, PortableImpedance: 16+/-20% 0.126v. at 1kHzFrequency range: 20Hz~20kHzResonance frequency: 4kHz+/-20%Rated input: 1mWMax imum input: 3mWL/R output difference: 3dB at 1kHz 1mWOutput sound pressure level: 95dB+/-5dB 1/mWEarphone weight: . 18gColor: Black+WhiteMaterial: ABSsize: Plug: 3.5mmEarphone length: . 120cm / 47.2inLine Length: 1.0mPackage Contents: 1 x Earphone(without box)