Vaporesso Armour itank 2 Kit (CRC) requires 1x 21700 battery.

Link:   ITank coils          21700 battery

Vaporesso Armour S Kit is equipped with iTank 2 that utilizes unique Morph-Mesh structure and is compatible with all GTi coils.

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Armour S Vaporesso Details:

• 1. Uni-lock, secure your power
• 2. AXON chip delivers a comprehensive range of modes
• 3. Supports 18650/21700 battery
• 4. Box kit for advanced DTL vapers
• 5. Crafted entirely from TPU material
• 6. One-key unlock
• 7. Accurate taste, lasting 50% longer
• 8. Fully compatible with GTi coils

The package of Armour S Mod Kit Comes With:

1* Vaporesso Armour S Mod
1* Vaporesso iTank 2 (5ml)
1* GTi 0.2ohm Mesh Coil (Pre-installed)
1* GTi 0.4ohm Mesh Coil (In-box)
1* Extra Glass Tube
1* Tank Protective Cover (Pre-installed)
2* O-ring
1* Refilling Silicone Plug
1* 18650 Sleeve (Inside the Mod)
1* Type-C Cable
1* User Manual & Warranty Card