【Multi-functional】3 different adapters make it compatible for car bike motorcycle balls balloons and other inflatables. With the built-in Lithium-ion battery, the pump can also be used as emergency lighting in the dark.
【Smart & Automatic】BY4U electric air pump supports 4 optional units: PSI, BAR, kPa, Kg/cm². You can check the current tire pressure quickly and preset the tire pressure you need, it will automatically shut off once reaching the preset value.
【Built-in Lithium Battery】Mini-body, extra-Large capacity with 2000mAh. The BY4U rechargeable air compressor can inflate for emergency. (Attention: Please don't activate the pump when it is in charging)
【Mini】The BY4U handheld electric tire pump measures 9.8 x 2.2 x 1.9 inches, weighs about 400g, and comes with a carry-on bag. It is easy to use.
【Warranty】Please feel free to contact us if you have any questions, quick reply in 24 hours.