WIRELESS & EASY TO USE: Featuring advanced Bluetooth 5.3 technology, the Bluetooth earbuds provide a super-stable, consistent, and ultra-low latency wireless connection as long as you are within 50 feet of the paired device. The earbuds can record information from up to 10 paired devices for a one-step connection with no need to re-pair! LOSE YOURSELF IN MUSIC: 13mm low-distortion, customized drivers deliver 100% crisp, bright highs, clear mids and 85% deep, rich bass with stunning clarity! Make you feel all of the music. Choosing a snug-fitting eartips (L/M/S) will give you better sound quality cargo call performance. MAKE YOUR MUSIC NEVER STOP: Single earbud has up to 7 hours listening time, you can enjoy 60H music time in total via using in turn, , allowing you to enjoy uninterrupted entertainment while traveling. No need to worry about batteries. Dual digital LED power display outside of the case is to show the power level for charging case MAKE YOUR VOICE HEARD EVERYWHERE: 4 ENC microphones maximize sound output and minimize sound loss for crystal-clear communication that lets you enjoy the sound. Bluetooth 5.3 technology ensures a stable connection so you're hassle-free