This is a compact size submersible pump(none self-prime). It's built by a brushless motor providing smooth and quiet operation than a non-brushless pump.

Features:
Brushless, permanent rotor, maintenance-free.
Stator and circuit board by epoxy resin.
USB interface, 5V input.
Enclosed with static sealing, not dynamic, which can leaking problems.
Small size, high efficiency, low consumption, low noise (less than 35db).
Wide resistance from 0°C to 100°C.
Used in Aquarium, car cooling, , air conditioner, other cooling and circulation systems.

Note:
1. It can be used in the or other liquids(without particles and impurities); NOT for acid and alkali solution.
2. DO NOT dry burn the pump, otherwise it would be damaged;
3. PLEASE let the pump vibrate several times in the to exhaust air, then it can work normally.

Specifications:
Color: Black
Pump material: ABS
resistance : 0 ~ 100°C
Condition of use: Continuously
consumption: 2.3W
Rated voltage: USB 5V 
Max. rate: 220L/H
Max. lift: 250cm / 8.2ft
Noise: Less than 35dB
Outer diameter of inlet / : 9mm / 0.35in
Inner diameter of inlet / : 6mm / 0.24in
Waterproof class: IP68
Product size: 56 * 52 * 47mm / 2.2 * 2 * 1.8in 
Product weight: 83g / 2.94oz
Package size: 6.2 * 6.2 * 4cm / 2.44 * 2.44 * 1.57in
Package weight: 93g / 3.28oz

Package List:
1 * Brushless Pump
1 * Plate
H17101