Great music: SolarBuds C2 wireless earbuds, employ the latest Qualcomm QCC3040 chip, APTX high-quality audio decoding, up to 48KHz frequency. Providing CD-level stunning stereo and make sure your music always sounds exactly how you like it. Great Calls: Call noise canceling headphones, C2 apply unique Qualcomm 4-Mic CVC 8.0 technology reducing 90% of background noises for clear high quality calls wherever you are, even in shopping. Latest Bluetooth 5.2 & APP Support: Stronger connection by Bluetooth 5.2 earbuds can guarantee fluent use. Download the Tribit app and upgrade the earphones firmware to the latest version to choose 24 different eq styles(jazz, bass, ACG, etc.). Extended battery & Touch Button: Get 8hrs music playtime per charge for bluetooth earphones, and totally 32hrs with the charging case for the wireless headphones. Single touch button for all controls including volume, call, on/off.