【Bluetooth 5.2 & Crystal Call】：The noise-cancelling earbuds adopt the latest Bluetooth 5.2, the Bluetooth connection is faster and more stable, the connection distance is longer, and there are fewer delays and dropped calls. Plus, it's equipped with a noise-cancelling microphone that better filters out background noise and captures your voice even when you're answering calls while driving, biking, and running. 【Immersive Sound & Deep Bass】: The wireless earbuds use a 10mm driver to enhance the performance of the low frequency and powerful bass sound characteristics, allowing you to be completely immersed in the music as if you are in a concert hall. Its AAC audio format is compatible with most devices to achieve higher sound quality. 【35H & Wireless Charging】: In ear wireless headphones offer 7 hours of power (ANC mode off) while the handy charging case provides an extra 4x charges to keep you going throughout the day. In addition to charging with the included Type-C data cable, you can also put the charging case on the wireless charger (not included) for easy charging. 【Active Noise Cancellation】: ANC earbuds can reduce unwanted noise in the environment without compromising the audio quality. It provides three modes, ANC on / transparent mode / ANC off , suitable for many occasions, such as subways, buses, home, offices, etc. [ Hold on the left earbuds about 3~5 seconds, you can change between ANC mode/ Ambient mode/ ANC off mode. 【A Snug & Stable Fit】: These lightweight IPX8 waterproof sport earbuds are made for all-day wearing, designed to fit securely in the ear and stay there comfortably. With 3 sizes of silicone rubber eartips included you can find the perfect fit for your ears to maximise sound quality and minimise outside noise.