This is a Bluetooth.  We like it for multi-sport enthusiasts; it is durable and cool looking.

• 3.5mm audio jack for Customized Otus Helmet Speakers!
• Remote control feature with Adjustable volume
• Talk on the phone or listen to music hands free. 
• clothing clip.
• Working range is up to 10 meters.
• Compatible with all Bluetooth-enabled phones
• Rechargeable life :play time is up to 6 hours & standby time is up to 130 hours
• Dimensions of product: main body is 53.3 x 33.6 x 9.9 mm
• Well designed and easy to use

Included:

• 1 x Bluetooth Headset
• 1 x USB Cable for charging
• 1 x Clothing Clip
• 1 x User`s Manual
• 1 x Set of Otus Helmet Speakers