900mah up to 4ml shake to preheat 510 battery hidden in vape bar

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Model: 900mah 510 battery hidden in vape bar
Cartridge: up to 4ml
Battery: 900mah
Preheat: shake 3 times to preheat
Adjust voltage: short puffs 2 times
Turn on/off: 3 short puffs
Voltage: 1.8v, 2.4v, 3.0v, 3.6v, 4.2v
Colors: black, cyan-blue, rose red, yellow, green, others oem welcome
Contents: 1pc battery, 1pc box


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