Product Overview: M90 Pro Earphone Key Attributes: Game Atmosphere Light: Multicolor Communication: Wireless Style: In-ear Functionality: Microphone, Wireless Charging, Power Bank, LED Display Use: Mobile Phone, Travel, Gaming, Sports Vocalism Principle: Dynamic Volume Control: Yes These HXION M88 Plus wireless earphones are designed for sport and active use, featuring wireless connectivity, dynamic sound quality, LED display for battery indication, and multifunctional capabilities like wireless charging and acting as a power bank. They are suitable for various activities including gaming and travel, with a warranty period of 1 year for peace of mind.