1.REFRESHING TASTE：Unlike common semiconductor refrigeration in the market, PiDan uses a just-in-time compressor to best match the self-developed smart sticker cooling technology. In a short period of time, reach optimal drinking temperature quickly, reaching the best drinking temperature of draft beer. 2.CLEAN AND SANITARY：Disposable tube NSF certifed Clean and sanitary. 3.CONSTANT PRESSURE PRESERVATION：Adopts low noise, low vibration micro electric air pump, under constant pressure control to keep the beer freshness for long time, intermittent tapping, the frst cup of beer as usual, guarantee the original taste.