Compatibility: Suitable for V6/V4 series motorcycle helmet intercom. 3.5mm Plug: This headset set uses a 3.5mm plug, which can be used with MP3 players, mobile phones, GPS and other 3.5mm plug music players. Easy to install: With self-adhesive tape label and nylon strap on the back of this headset set, you can easily install the flat headset into a motorcycle helmet. Material: ABS material, good stability, durable, exquisite workmanship, can be used for a long time. Good Sound Quality: Microphone Headset with noise cancelling microphone design, can helps to excellent transmitted audio. Item Descriptions:-Compatibility: Suitable for V6/V4 series motorcycle helmet bluetooth intercom.-3.5mm Plug: This Bluetooth headset set uses a 3.5mm plug, which can be used with MP3 players, mobile phones, GPS and other 3.5mm plug music players.-Easy to install: With self-adhesive tape label and nylon strap on the back of this bluetooth headset set, you can easily install the flat headset into a motorcycle helmet.-Material: ABS material, good stability, durable, exquisite workmanship, can be used for a long time.-Good Sound Quality: Microphone Headset with noise cancelling microphone design, can helps to excellent transmitted audio.Package:1 x Microphone Hard Cable Headset2 x Small Self-adhesive TapeItem Specifications:Material:ABSColour:BlackSuitable:For V4/V6 motorcycle helmet intercom