JBL TOUR PRO 2 Wireless Earbuds Bluetooth Hybrid Noise Cancelling ■ This product is certified with the Technical Regulations Compliance Mark. Frequency band: 2402 MHz - 2480 MHz ■ Equipped with a 10mm dynamic driver with a "DLC (Diamond-Like Carbon)" coated diaphragm ■ Features hybrid noise canceling with real-time correction function for significantly improved noise cancellation ■ First equipped with JBL's proprietary "Spatial Sound" function, allowing you to enjoy a spacious sound field with all content