CONTENTS EN DE FR ES IT PT RU JP SAFETY IS ALWAYS THE FIRST PRIORITY! 5 26 48 70 92 114 136 158 SECTION 1 WHAT'S IN THE BOX? 6 28 50 72 93 115 138 159 SECTION 2 PRODUCT OVERVIEW 7 28 50 72 94 116 138 160 SECTION 3 GETTING STARTED 8 30 52 74 96 117 140 161 SECTION 4 TEST THROUGH THE TEST BUTTON 12 33 55 77 99 121 143 165 SECTION 5 TEST THROUGH THE APP BT20 13 34 56 78 100 122 144 166 SECTION 6 FAQ 22 44 66 88 110 132 154 176 SECTION 7 TECHNICAL SPECIFICATION 23 45 67 89 111 133 155 176 SECTION 8 WARRANTY 23 45 67 89 111 133 155 177