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Designed for both men and women
It also has a thin construction with a smooth surface area to further reduce friction
Transmits from your smartphone to the device's receiver – keep the receiver above the water for a successful signal
Gasketless frame provides greater peripheral vision
A great training tool
Duo™ | Underwater Bone Conduction MP3 Player Colours:BLACK/ACID GREEN Designed for both men andThe Duo is an MP3 player designed for swimmers that offers the highest quality sound without the use of ear buds. The Duo utilizes a sleek, two piece design and Bone Conduction audio transmission to deliver crystal clear audio through cheekbones to the inner ear. An integrated clip design secures the Duo to goggle straps to rest on the cheekbones for a comfortable and streamlined fit. A simplified interface offers four buttons to easily navigate
