Engineered for active lifestyles, sports neckband headphones combine functional performance, ergonomic comfort and eye-catching LED lighting to accompany your daily workouts and outdoor activities. Built with advanced CSR V4.1 Bluetooth and EDR technology, these wireless headphones deliver stable signal transmission within a 10-meter range, paired with 10mm driver units and echo cancellation technology to produce crystal-clear stereo sound, rich audio details and crisp high-definition calls. A high-sensitive built-in microphone enables seamless hands-free communication, effectively filtering echoes and ambient noise for smooth voice chats anytime.The flexible neckband features customizable LED lighting with three adjustable modes including steady light, slow flash and fast flash, easily controlled by a dedicated switch button. The luminous design enhances visibility and safety for night running, cycling and evening outdoor exercise, perfectly fitting low-light sports scenarios. Crafted with skin-friendly soft silicone ear hooks and an ergonomic frosted surface design, the headset fits ear contours closely, providing firm anti-slip support and all-day comfortable wear.Powered by a built-in 120mAh lithium-ion battery, this neckband headset offers impressive battery efficiency. With LED lights turned off, it supports up to 6 hours of music playback, 8 hours of talk time and 90 hours of long standby. When the LED light is activated, it provides 4 hours of music time, 5 hours of call time and 13 hours of standby, fully charged in just 3 hours via the included USB charging cable. Real-time battery level display is available on iOS devices for convenient power management.Lightweight at only 0.76oz with a portable compact package size, it comes in vibrant color options of green, blue, red and orange to match personal styles. Boasting wide compatibility with mainstream Bluetooth protocols, it suits running, hiking, yoga, fitness, travel and daily leisure use.