Immersive Listening – Baseus ANC Bluetooth earbuds filter out -42dB noise, keeping the enjoyment to yourself in active noise cancellation mode. The Crisp & Clear Call-Baseus wireless headset will deliver your voice clearly through a phone call with ENC mode activated to filter out ambient noise when talking. Seamless and Stable Connection – Baseus wireless Bluetooth earbuds are equipped with Bluetooth 5.2 chip which provides flawless listening, stable connection and pairing in seconds once you open the lid after initial pairing. Sync Image and Audio – Watch video or play game without audio and video sync issue – Enjoy an imperceptible low latency of 0.038s with Baseus wireless Bluetooth headphones. FAST AND WIRELESS CHARGING COMPATIBLE – Fully charge your noise cancelling earbuds in 1 hour with the included fast charging cable or charge the charging case wirelessly for an additional 25 hours of playtime, for a total of up to 30 hours combined with fully charged earbuds.