New study specialty product with mutifuntion as below description,The price and MOQ can be negotiated: 1.function: Tire pressure detection, air compressor, led flashlight,power bank 2.application scene: Cars, motorcycles, bicycles, swimming ring,balls 3.Large capacity: built-in 5C 18650 3.7V/2000mAH lithium battery 2S1P 7.4V with high capacity and high safety performance. 4.Lighting function: This product integrates two 2835 white LED lamp beads, which can be used as outdoor lighting and SOS rescue function. 5.Air compressor function: The power supply integrates an air compressor, which can be used as tire inflation. 6.Air pressure detection function: The power supply integrates a digital air pressure gauge, which can be used as air pressure detection, with an accuracy of �±0.01Bar and an error of �±0.1Bar. 7.USB output: can charge all kinds of digital products. Easy to use. 8.Ultra-high efficiency: 5V/2A charging efficiency>70% (Type-C port) 9.Durable: Built-in battery charge and discharge cycle times â?¥ 500 times. 10.Safe and reliable: There is a power supply short circuit protection design on the PCBA; built-in lithium battery protection IC: It can effectively prevent the battery from overcharging, overdischarging, and overcurrent. 11.Ultra-high air pressure output: 150PSI can be applied to the tire pressure range of various types of bicycles (road type/mountain type/competition type/children type, etc.). 12.Custom Mode: Users can edit the customary air pressure value and unit by themselves. Make the product closer to the user's needs. 13.Pressure maintaining function: This product is designed with pressure maintaining function. It can keep the air pressure value within the set value. Automatic air inflation. Suitable for painting/tattooing/watering flowers/water gun/air gun/small cylinder rod, etc. Welcome to know more details for further progress,thx for cooperation.