A Micro Bar is a compact, disposable cannabis vape pen made by Microbar.us. It holds 2 grams of cannabis oil in a pocket-sized device measuring roughly 36 by 13 by 62 millimeters, about the size of a car key fob. The name refers to the device’s small form factor, designed to be discreet and easy to carry.
How the Device Works
The Micro Bar uses an auto-draw system, meaning there are no buttons to press. You simply inhale from the mouthpiece, and the device heats the cannabis oil automatically. The heating element combines ceramic with organic cotton, which is a common setup in modern vape hardware designed to produce cleaner-tasting vapor compared to older metal coil designs.
One of the device’s standout features is its dual airflow system. Two air channels feed into the heating chamber, which serves two purposes: it increases vapor production per draw and helps prevent the clogging that plagues many disposable vapes. If you’ve used cheaper disposables that stopped working halfway through, this is the problem dual airflow is meant to solve.
The battery is 210 mAh, which is small but proportional to the device’s size. It recharges through a USB-C port, and the manufacturer claims a full charge takes between 10 and 30 minutes. Because the device is rechargeable, you can use the full 2 grams of oil without the battery dying before the cartridge is empty, a common frustration with non-rechargeable disposables.
What’s Inside the Oil
Micro Bar products contain cannabis oil with a terpene profile that varies by flavor. Looking at one example, the Blackberry Slush variety, the dominant terpene is limonene at 2.81%, which produces citrusy, uplifting effects. Smaller amounts of linalool (0.39%), beta-caryophyllene (0.26%), and beta-myrcene (0.25%) round out the profile. These naturally occurring compounds are what give each strain its distinct flavor and influence whether the effects feel more relaxing or energizing.
The terpene percentages matter because they tell you something about the quality of the oil. Products with a diverse, clearly labeled terpene profile are typically using higher-quality cannabis extracts rather than heavily processed distillate with artificial flavoring added back in.
Available Strains and Flavors
Micro Bar organizes its lineup into three categories based on the type of cannabis strain used: indica, hybrid, and sativa. Each comes in fruit-forward flavor profiles.
- Indica (relaxing): Blueberry Kush, Strawberry Fields, Mango Sunset, and Pink Lemonade. These are designed for winding down, with heavier, body-focused effects.
- Hybrid (balanced): Watermelon Mimosa, Pink Lychee, Peach Driver, and Zhirley Temple. Hybrids split the difference between relaxation and energy, making them a popular choice for people who don’t want to feel sedated or overstimulated.
- Sativa (energizing): Orange Tangie, Lemon Diesel, Lime Sorbet Haze, Pineapple Express, Apricot Jelly, and Blue Hawaiian Punch. The sativa lineup is the largest, leaning into citrus and tropical fruit flavors with effects described as uplifting and active.
The sativa options tend toward sharp, tangy flavor profiles while the indicas skew sweeter and softer. If you’re new to cannabis vapes, hybrids like Peach Driver or Watermelon Mimosa are a reasonable starting point because their effects are less pronounced in either direction.
Safety and Testing Standards
Cannabis vape products sold through licensed dispensaries are subject to state-level testing requirements, though those requirements vary significantly. An increasing number of U.S. states, including Colorado, Oregon, Michigan, Maryland, and Florida, require testing for heavy metals in cannabis vape liquids. The metals most commonly screened for are arsenic, cadmium, mercury, and lead, with concentration limits typically following European Pharmacopoeia standards (for example, lead must stay below 0.5 micrograms per gram).
That said, the cannabis testing landscape has gaps. Research published through the National Research Council of Canada found that metal particles present in vape liquids can interfere with accurate lab measurements, making reproducible results difficult. There’s also growing advocacy to expand testing beyond just the “big four” metals, since the heating elements and hardware in vape devices can introduce other metallic contaminants that aren’t routinely screened.
When purchasing a Micro Bar or any cannabis vape, buying from a licensed dispensary is the most reliable way to ensure the product has gone through at least the baseline testing your state requires. Products sold outside of regulated channels skip this process entirely.
Understanding Indicator Lights
While the Micro Bar itself uses auto-draw activation, most compact vape pens in this category communicate battery status through LED lights. A blinking light typically means the battery is low and needs charging. Rapid or repeated blinking can also signal overheating, a connection problem between the battery and the oil cartridge, or a short circuit.
When you plug the Micro Bar into its USB-C charger, expect the light to flash while charging and change color or turn solid once the battery is full. If your device blinks three to five times when you try to draw and produces no vapor, the battery is dead and needs a charge rather than a replacement.