[100 Hours Playtime with LED Charging Case]The digital LED power display on the outside of the case shows the power level of the charging case and earpieces. When charging, the LED light starts blinking from 1 to 100. When you put the earpieces in the case, the earpieces will start charging. Equipped with 800mAh battery capacity charging box. Type-c fast charging provides 10 full charges for the earpiece, and each headset can last up to 15 hours on a charge. So you can enjoy 180 hours of music time by taking turns.

[Bluetooth 5.1 technology Low latency & noise reduction function]Equipped with advanced Bluetooth 5.1 chip, extremely low memory usage and low power consumption, 4 times higher data transmission speed than previous versions, 6 times the communication range and 8 times the data transfer. Provide the low latency, improve the connection stability of Bluetooth headsets. It also built-in omnidirectional high-sensitivity microphone, allowing you to enjoy a comfortable call experience. Even in wet places such as bustling streets or stations, planes and trams, it will not affect the sound of the surrounding environment, and make clear music and calls.

[Comfortable wearing design & Simultaneous connection of two devices]The lightweight YYK-530 Bluetooth headset (12g) will not put any burden on your ears, providing comfort long-lasting wearing , which is good for drivers or businessmen. The 360° adjustable ear tips fit perfectly in your left or right ear. The headset supports simultaneous connection of two devices, it can easily pair with any 2 mobile phones at the same time and answer calls from any of them.

[Multi-Function & Hands-Free Call]-Quickly activate Siri to make hands free calls. Easy-to-reach buttons let you enjoy real hands-free of wireless for calling. Equipped with a mute function, press the volume +/- button for 2 seconds will keep your voice unheard from other party during the call, protect your privacy when you need.

[Wide Compatible]Adopted latest Bluetooth 5.1 technology and could provides fast and stable connection with bluetooth device from up to 33 feets away without signal loss or music dropout. Pairs perfectly with many electronic devices.