Description: Bluetooth, memory card, can be switched freely, the multi-function display can display the status of use in real time, and is equipped with 2 effects modes 800mAh large-capacity lithium battery, using low-power micro-power technology, fast charging in 2 hours, providing continuous 180 hours of long-term battery life, 39h playing time. Memory neck hanger, can be bent at will, skin-friendly material, unique memory arc, automatically rebounds to restore the original shape, adjust the arc at any time, and wear more comfortable and natural The magnetic earphone head is automatically adsorbed when it is removed. When not in use, the magnetic earphone is designed to cleverly absorb the earplugs to prevent the earphone cord from being tangled or falling. Integrating shock absorption, sound absorption, and sound insulation in one, instantly experience 9D stereo surround sound quality, A smart voice assistant, intelligent operation through voice Specification: Transmission Range: 15m Bluetooth: 5.2 Channel: Stereo Usage: Neck Hanging Type Whether Single Or Double Ear: Bilateral Stereo Battery: 800mAh Life time: 180h Material: Plastic Size Chart: 20x15x2.5cm/7.87x5.91x0.98inch Package Includes: 1 Piece Earphone 1 Piece Charging Cable 1 Piece Manual 1 Piece Box Note: 1. Please allow slightly error due to manual measurement. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. 3. Wish you a wonderful on-line shopping!