?SMY 40W Mechanical Mod For Electronic Cigarette<br>Description:<br> Press the the power button 5 times to turn ON\/OFF<br> LED screen display wattage｣ｬ voltage｣ｬ resistance｣ｬ battery level<br> Opposite connection protection<br> Short circuit protection<br> Protection of low loading (\/= 3.5 +\/- 0.2ohm)<br> Protection of temperature control <br> Protection of low voltage (&amp;lt; 3.0V)<br> With locking and unlocking function <br> 510\/eGo connection thread<br> Houses single 18650 battery (battery sold separately)<br> 2 air holes on the opposite side of the bottom cap<br> Removable beautiful decoration ring with 2 air holes<br>  <br> Specification:<br> Name: SMY 40W Mod<br> Material: carbon fibre tube<br> Color: black｣ｬred｣ｬblue<br> Variable wattage: 7-40W (in 0.1W increment)<br> Working voltage: 3.7-4.2V<br> Resistance: 0.3-2.5ohm<br> Connection threading: 510\/eGo<br> Size: 14 x 2.4cm<br> Weight: 237g<br>  <br> Package included:<br> 1 x SMY 40 Mod<br> 1 x Manual<br> 1 x Gift box  Detailed pictures: