Elegance Comes First : UP4 2022 continues the classic design of the AOSHIDA family, with simple lines, light and thin volume, fresh and moisturizing, elegant and pure body, with golden rollers inlaid in it, adding dignity to the elegance of the AOSHIDA family, gently rotating enjoy a great listening experience.
Dual ES9219C DAC : The UP4 2022 is equipped with two deeply developed ES9219C chips as the core DAC. The heat generation is stably controlled while the power consumption is low. The resolution and restoration power are convincing, and the strong output power presents excellent warm sound quality.
2.5mm Balanced&3.5mm Single-Ended Output : The UP4 2022 is equipped with a 2.5 + 3.5mm dual interface. In the balanced output mode, the dual ES9219C DAC burst out synchronously, and the left and right separation, sound field performance, and signal output are getting better and better.
Long Battery Life : UP4 2022 is equipped with a large 540mAh battery, charging for 2 hours, listening for a whole day about 300 hours long standby, single ended is 11.5H, balance is 9.5H, guarding your HiFi journey.
More function, More Fun : HD calling; High-gain, low-gain, dual DAC booster switch freely; NFC function; APP Control; UP4 2022 is equipped with mainstream Type-C USB interface, supports USB DAC, mobile phone, computer, tablet, TV, car audio and other equipment, easy to connect. Compatible with a Various Of Digital Devices, Such as Mp3 Mp4 Mobile Phone Computer.