Enhance your aquarium environment with this advanced Fish Tank Air Pump, designed with a durable ABS shell featuring noise reduction technology and precision CNC machining for superior sound insulation and strong bearing capacity. Perfectly engineered for quiet operation, this air pump operates at a whisper-quiet noise level of ≤30dB, making it ideal for sensitive settings such as baby rooms or bedrooms. Equipped with silicone shock-absorbing pads, it effectively minimizes vibration and noise for a peaceful aquatic atmosphere. Key Features: · Durable ABS Shell with Noise Reduction Technology: Provides excellent sound insulation, oxidation resistance, and robust structural strength for long-lasting use. · Ultra-Quiet Operation: Baby sleep-grade mute design combined with multiple shock absorption techniques ensures noise levels remain at or below 30dB. · Dual Mode Oxygen Supply: Easily switch between continuous and intermittent oxygen supply modes with a single button, offering flexible aeration options tailored to your aquarium’s needs. · Intelligent Protection System: Features an intelligent protection chip that allows the pump to auto-start after power interruptions and supports simultaneous charging and operation. Once fully charged, it automatically switches to battery-only operation for safety and efficiency. · Dustproof USB Port with Sealed Screw Cap: Protects the USB charging port from dust and moisture, enhancing durability and reliability. · Convenient Mounting Clip: Includes a fixing clip that can be attached to your waist or aquarium wall for easy placement and portability. Specifications: · Material: ABS · Single Hole Air Pump Size: Approx. 7 x 12 cm (2.8 x 4.7 in) · Double Holes Air Pump Size: Approx. 8.5 x 12 cm (3.3 x 4.7 in) · Power: Single Hole 1W, Double Hole 2W · Air Volume: Single Hole 3L/min, Double Hole 2 x 3L/min · Battery Type & Capacity:   - Single Hole: 1 x 2600mAh Lithium Battery (included)   - Double Holes: 1 x 4800mAh Lithium Battery (included) · Suitable for Fish Tanks:   - Single Hole: 30-50L   - Double Hole: 30-100L Package Includes: · 1 x Fish Tank Air Pump This Fish Tank Air Pump combines quiet, efficient oxygenation with intelligent features and durable construction, making it an essential accessory for maintaining a healthy and vibrant aquatic environment both indoors and during outdoor fishing activities.