The Sennheiser MOMENTUM True Wireless are Bluetooth in-ear headphones offering high-quality audio reproduction and long-lasting battery life for indoor and outdoor use. Featuring Bluetooth version 5.0, these headphones support multiple audio codecs including SBC, AAC, aptX, and aptX-LL (Low Latency). Their IPX4 rating gives them resistance to splashes and perspiration, making them equally suitable for active or sedentary lifestyles. Compatible with the Sennheiser Smart Control app for iOS and Android, the MOMENTUM True Wireless easily and conveniently assimilate with mobile devices.