Disposable Vape Pen Empty HHC Oil 1ml Preheating

1. Lead free materials
2. Disposable with a visual window
3. Reachable with Android port
4. Capacity: 1000mg ~0.85ml
5. Ceramic coil 2.0mm oil hole and resistance 1.4ohm (custom available)
6. 280mah A grade Li battery
7. 2.5v Auto preheating (10s)
8. Variable voltage 2.8/3.5v