Feature: 1. LED Display: The cool LED display function of the bluetooth earbuds visually show the headphone and charging case battery levels with bright and colorful light effects. 2. 2 Pairs of Earphones: Two pairs of earphones allow for continuous use, providing 24 hour nonstop power so you never have to worry about running out of battery. 3. Bluetooth 5.4: The wireless headphones ensure faster connection, higher response frequency, and automatic charging when the case is closed, ensuring a quick and seamless connection as soon as the case is opened. 4. Independent Connection: Each earphone can connect to different signals without interference, or connect simultaneously to the same signal, delivering stereo sound when picked up together. 5. Low Latency: Low latency of around 50ms, the Bluetooth earphones significantly enhance the gaming audiovisual experience, achieving synchronized sound and picture for immersive game play. Specification: Item Type: Bluetooth Earphones Material: PC, ABS Bluetooth Version: V5.4 Speaker: F13MM Built in Polymer Battery: 300mAh (Charging Case), 25mAh (Single Earphone) . Package List: 4 x Headphones 1 x Charging Case 1 x User Manual 1 x Lanyard 1 x Charging Cable