Aquarium Air Pump with Smart Protection: Starts automatically when the power supply is interrupted, suitable for AC and DC. It features a smart protective chip, can charge during operation, and works without charging after fully charged.

• Silent Operation: The design is quiet, with a noise level ≤30dB. It includes shock-absorbing silicone that reduces friction and noise.
• Waterproof USB Port: The air pump includes a USB port with waterproof protection secured by a screw. There is a support clip at the bottom for attachment to a belt or wall.
• Dual Function: Switch between continuous and intermittent oxygen supply with the push of a button, offering ease of use.
• Material: The casing is made of ABS with noise-reducing technology, CNC cutting precision, oxidation-resistant treatment, and good sound insulation.

Usage Instructions: When charging for the first time, charge for 6-8 hours. All power indicators light up during charging. After fully charged, they automatically turn off. To turn on/off, gently press the button.