The OPPO Enco Air4 are modern in-ear headphones designed for a variety of applications, including calls and music. With True Wireless Stereo (TWS) technology, they offer a wireless connection via Bluetooth that allows a range of up to 10 metres. The headphones are lightweight and weigh just 4.2 grams, making them particularly comfortable for everyday use. They have an impressive frequency response of 20 to 20,000 Hz, which ensures clear and balanced sound reproduction. Active noise cancellation ensures that ambient noise is minimised so that users can immerse themselves in their music or conversations. The battery life of up to 12 hours allows for extended use without frequent charging, while the USB-C charging option provides a quick and convenient power supply.