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Features:

You will get a great sound wearing your helmet of which with this speakers inside when you\`re riding a motorcycle or a motorbike.

Very easy to install，the soft speakers can be attached to the inside of your helmet by adhesive stickers， there is an on/off button and a volume controller on the cable，an extension cord is included as well.

The helmet speakers have a 3.5mm standard plug and will work well with your MP3，MP4，GPS，Iphone，Cellphone，etc. which has the same jack

Specifications:

Connection: 3.5mm jack

Speaker dimensions (diameter x width): 60 x 10mm (2.3 x 0.4")

Attached cable length: 92cm (36")

Extension cord length: 94cm (37")

Total cable length: 186cm (73")

Color: Black

Package includes: 5 sets of speakers