• Built-in speakers and mic enable you to listen to your music and your surroundings
• Group Intercom allows you to communicate with up to three other riders. One Key System compatible: Yes
• Bluetooth connectivity pairs to your smartphone so you can access features on-the-go
• Comfortable and secure design, with removable and washable padding, nylon chinstrap, and spin lock
• Customize settings such as friend groups, radio presets, and more using a dedicated smartphone app. Complies with 16 CFR Part 1203 safety standard

Open Box. Tested. Item appears to be in unused, excellent condition. Item charged, turned on and worked perfectly. See images for item condition. Everything included with the item can be seen in the images. The Sena R1 Smart Cycling Helmet is a blend of technology and traditional construct, featuring built-in speakers and mic into the shell of a cycling helmet. Enhance your cycling experience within your cycling group with group intercom, giving you the ability to communicate with your group with a range of up to a half-mile. Sena’s Advanced Noise Control technology ensures your voice is transmitted clearly with no wind or white noise to be heard. Listen to your music, hear GPS navigation, take phone calls and more when you pair your smartphone to the R1. With a comfortable design, removable and washable inner padding, an eco-leather chinstrap, and a spin lock to adjust the fit, the Sena R1 is ready for your next cycling adventure. Medium Sena R1 Helmets are fit for a head size of 55 cm – 59 cm : 21 3/4 in – 23 3/8 in