The Sena ACS10 is a Bluetooth communication system designed specifically for the Arai Contour-X motorcycle helmet, but we've found it fits great in any of the Arai X-Series helmets, including the Quantum-X, the Signet-X, and the Regent-X. It even works with the new dual-sport XD-5 model.

The discretesetupconsists of HD Speakers, a microphone, a three-button control panel, and a battery bar, which is covertly housed underneath the helmet's neck roll.

The ASC10 was designed for the exact interior recesses of the Arai Contour-X; also known as the Quantic in the European market.

Since most Arai full-face helmets follow the same basic form factor, we've found this unit to fit flawlessly into any of the Arai X-Series helmets, such as the and . It'll also fit into the however because that helmet's center pad is not snapped into the EPS shell, and because this Sena unit uses the two rear snaps to locate itself, the Regent will take some finesse with the included Velcro to get installed properly.

The ASC10 will provide all the basic comm device functionsit will pair with your phone to take calls, make calls, and/or listen to music and directions. It also will pair with up to four other compatible Sena devices.

Updated, we've also found this unit work well with the.

Note: this unit operates on an earlier styleBluetooth intercom band, compatible with Sena 10s, Sena 20S,original SRL systems for Shoei, and the like. It will connect to dual-phase systems, like the 50S and 50R, which can be paired with other units either via Bluetooth, or via Mesh, but this unit will not pair with Sena Mesh-Only systems, like the ST or RT line, or the Shoei Netotec/GT-Air II SRL Mesh.