PREMIUM HARMONIUM MAKER CONCERT QUALITY HARMONIUM A440 PITCH – CHECKED AT DISPATCH SET OF 2 HIGH QUALITY REEDS: 1 MALE + 1 BASE = RICH SOUND 2½ OCTAVES, TOTAL 30 KEYS INSTANT RESPONSE KEYBOARD – NO LAG TIME MULTI-FOLD BELLOWS FOR EASY PUMPING & CONSISTENT SUSTAIN AIR LEAKS ARE CHECKED FOR LONGER SUSTAIN COUPLER FUCTION PORTABLE FOLDING BOX TYPE FULL WOODEN TOP COVER BRIGHT NICKELED BRASS KNOBS WOODEN/JAALI ON KEYS MADE WITH DRIED INDIAN WOOD – KAIL WOOD TESTED BEFORE SHIPPING: SOUND, KEYS, TUNING, SUSTAIN, FINISH ETC.