... more practical”. iTaste MVP eliminates many issues that widely exist in most vaping devices, such as short battery life, inconvenience ... -CigaretteBrand nameiTaste MVPAs e cigaretteThread fit :CE4,CE5 ,eGo ,VIVI NOVA and 510 etcAs mobile power supplyfit for: mobilephone,MP4,MP3 ... etc ) Operating Volt adjustable ( 3.3-5.0 Volts in .1 volt increments ) Puffer accounter Polymer li-ion rechargeable battery ...