Tips: For the Wendy rail helmet, an additional part is needed, a Wendy Connector for the AMP headset. Comfort: Lightweight and breathable, adjustable headband fit for all-day wearing comfort. Clear audio: Multi-directional noise reduction and acoustic shock protection circuit to protect your hearing. Shiny finish: High-quality tpu material is used to make the headset more durable and wear-resistant. It can be used for a long time.