Golden Harvest v4 Core

2/3 watt , 4/8 ohm speaker

Features: Pre-power on, Blaster, Lockup, Flash on Clash,Volume adjustment, Force, Music, Blade style selection, smoothswing

Safety features: Battery backwards protect, Overload protection, Over discharge protection

Proffie 2.2: 3600 Mah 18650 3.7V safety protected battery,  32 sound fonts