Active magnetic clamp the new active magnetic design continuously adjusts its position and pressure on the disc, effectively improving rotation stability, significantly reducing unwanted mechanical noise and vibration from the cd drive'. '.strtoupper('c')ustom designed cd system equipped with a new compact cd drive system that ensures desktop level performance with high accuracy while providing seamless playback for all cds'. '.strtoupper('a')dvanced anti shake systems ec zero akm was developed with a special focus on mobile use and utilises a range of systems that ensure uninterrupted and skip free cd playback when listening on the go'. '.strtoupper('w')hether in a vertical or horizontal position, while walking or sitting, playback stability remains unchanged'. '.strtoupper('h')igh quality construction each device undergoes a long testing and calibration process during the production cycle, which guarantees a perfectly balanced and stable cd mechanism that is crucial for ideal disc rotation and audio playback'. '.strtoupper('t')he gentle side of high fidelity akm ak4493s dac and dual sgm amplifier akm dacs play a major role in shanling's audio designs, with the ak4493s proving its great capabilities in a range of shanling devices'. '.strtoupper('n')ow, ec zero akm leverages this dac and shanling's extensive hi fi expertise to deliver a warmer sounding and perfectly natural cd playback on the go'. '.strtoupper('t')he headphone section features two sgm8262 amplifiers that deliver transparent and powerful output of up to 836 mw at 32 omega'. '.strtoupper('w')ith precise 100 step volume control and a fast volume knob, the ec zero akm is an excellent addition to both sensitive earbuds and hard to drive full size headphones'. '.strtoupper('e')xtended battery life external power supply at home the ec zero akm is powered by a built in 5500 mah battery, offering complete independence and hi fi playback anywhere, anytime'. '.strtoupper('w')ith the new audio circuitry, battery life is extended to up to 10 hours'. '.strtoupper('f')or desktop use, simply connect a usb c power adapter to the ec zero and switch it to a special external power supply mode to achieve higher output power and maintain the long term condition of the battery.