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