Puro Sound Labs' new PuroPro headphones tick the "big 3" on most people's top list: comfort, good sound and noise cancellation. As well as all of the above, PuroPro has volume limiting for hearing protection, as well as comfy over-ear pads made of soft foam covered with PU leather.

The inner hole has a 2cm depth to the driver, which is covered with thick foam padding too. The inner hole dimensions are 5.5 cm high x 4cm wide, while the outer measures 10cm high x 8cm wide. The underside of the PuroPro headband is padded too with a generous piece of springy foam padding (firmer than the earpads), which helps alleviate hot spot on top of the head. The PuroPro headphones have a classic headphone construction with yokes to allow the earcups to tilt up and down. The folding/swivel hinge also allows the earcups to fold inwards and rotate flat so, you can comfortably carry them around the neck. 

The PuroPro headband has a clicky ratchet plastic slider reinforced with a metal band. On the right earcup, you find a volume/track skip button rocker, 3.5mm audio port, power button and ANC button. Buttons are plastic, raised and clicky. 

 

The buttons allow you to control media playback (play/pause, skip tracks (next/previous), volume (up/down), voice assistant, ANC and calls (answer/end/reject/re-dial). The ANC function can be turned on and off and adjusted between two levels (high and low) right from the earcup without the need of a mobile app. When turning on ANC, the bass response becomes elevated (boosted) but without distorting the audio.

The PuroPro headphones are equipped with 40mm drivers with low impedance (32 ohms) and high sensitivity (120dB) when using a standard non-limiter audio cable. When using the included limiter cable, the sensitivity gets capped to 85dB. Via bluetooth mode though, you can choose between 85dB or 95dB sensitivity mode by pressing the Vol + and Vol - at the same time for 3 seconds. In terms of audio performance, the sound quality is best when using a non-limiting cable - you get a punchier bass which is balanced with the vocals and instruments. At 85dB and 95dB, the bass isn't as present.

 There is one omnidirectional microphone on-board the PuroPro too for calls. The microphone sounds good and uses the ANC microphones to remove enough background noise during calls to make it adequate for important calls. The charging time of the PuroPro internal battery is 2 hours and can deliver about 27 hours of battery life with ANC ON and 50% volume - (31 hours with ANC OFF). When powering on the headphones, you will hear a voice prompt announcing the battery level. You will also hear a voice prompt when changing ANC level (ANC 1, ANC 2)