Vivo Over-Ear Noise-Cancelling Headphones have been launched in China. They feature a 40mm dynamic driver unit with a frequency response range of 20Hz to 40kHz. The headphones are compatible with AAC, SBC, and LDAC audio codecs and support DeepX 3.0 stereo sound technology. The headphones can be connected with up to three devices simultaneously and are claimed to deli…​Vivo Over-Ear Noise-Cancelling Headphones have been launched in China. They feature a 40mm dynamic driver unit with a frequency response range of 20Hz to 40kHz. The headphones are compatible with AAC, SBC, and LDAC audio codecs and support DeepX 3.0 stereo sound technology. The headphones can be connected with up to three devices simultaneously and are claimed to deli…  ​ audio