3.5L Wireless Pet Water Fountain │ Oneisall PW04

Oneisall PW04 3.5L Wireless Pet Water Fountain—cut the cord, enjoy up to 60 days of battery life on a single charge, and keep your pets hydrated with fresh, flowing water thanks to the 304 stainless steel bowl and 5-layer filtration system. Authentic original product.
Cats are naturally active, jumping around the home, which means cords from traditional water fountains can easily get tangled, chewed, or tripped over—posing a risk and limiting placement to near wall outlets. The Oneisall PW04 features a truly wireless design with a built-in 5000mAh rechargeable battery, offering up to 60 days of standby time. Place it in the living room, bedroom, hallway, or even on the balcony without restriction. The drinking bowl is crafted from 304 food-grade stainless steel to prevent bacterial growth and help avoid feline acne (blackheads on the chin). Its 5-layer filtration system removes hair, impurities, and odors, while three water modes (induction/timed circulation/continuous flow) cater to different drinking habits. Operating at under 30dB, it won't disturb you or your pets at night. With a 3.5L capacity and a transparent water level window, it’s perfect for multi-pet households or when you're away for a few days.
Truly Wireless・Place Anywhere｜60-Day Ultra-Long Battery Life｜304 Stainless Steel・Prevents Feline Acne｜5-Layer Filtration System｜3 Water Modes｜<30dB Ultra-Quiet｜3.5L Large Capacity｜USB-C Charging｜Authentic Original Product

Do you encounter these problems?

• Wired fountains must stay near an outlet, making placement inconvenient and discouraging pets from drinking.
• Curious pets chew on cables or trip over them, causing spills and electrical hazards.
• Plastic bowls can become slimy over time, leading to feline acne (blackheads on your cat's chin).
• Cats dislike stagnant water and prefer toilet or glass water, risking chronic dehydration and urinary health issues.
• Loud pumps make buzzing noises at night, keeping both you and your pets awake.
• Traveling for a few days leaves you worried about potential power cuts or low water levels.

Why is a wireless stainless steel fountain better for cats?

Cats are desert-dwelling animals with a naturally low thirst drive; lack of water intake is a major cause of urinary stones and kidney disease. Veterinarians recommend "flowing water" to encourage drinking, and placement is key—cats prefer to drink in quiet areas away from litter boxes and food. Wired fountains are limited by outlets, often forcing placement in suboptimal spots. The PW04’s wireless design lets you place the fountain exactly where your cat prefers or uses most often, or even rotate between multiple locations. Stainless steel is smooth, scratch-resistant, and less prone to bacteria than plastic, reducing the risk of feline acne and oral hygiene issues. The 5-layer filtration and continuous circulation ensure fresh water, encouraging your cat to drink more naturally.

Product Features

Truly Wireless Design, Safe and Convenient
The detachable main control module contains a built-in battery, eliminating the need for a power cord and preventing chewing, tripping, or electrical risks. It can be placed anywhere in your home, or kept plugged in for continuous use.

60-Day Ultra-Long Battery Life
Features a 5000mAh high-capacity lithium battery. On the induction mode, it can last up to 60 days on a single charge. It uses USB-C charging and reaches full capacity in about 7 hours, giving you peace of mind during travel or power outages.

304 Stainless Steel Material, Prevents Feline Acne
The bowl is made of food-grade 304 stainless steel, which is smooth, scratch-resistant, and hygienic. It effectively reduces blackheads on cats' chins commonly caused by plastic bowls and is dishwasher safe.

3 Water Modes to Suit Drinking Habits

• Induction Mode: The built-in sensor detects when a pet is near and dispenses water, saving energy for the longest battery life.
• Timed Circulation Mode: Automatically cycles water at fixed intervals to keep it fresh.
• Continuous Flow Mode (Plug-in): Provides constant flowing water to attract pets who love playing with water.

5-Layer Filtration System for Constant Purity
Combined with a filter sponge, these layers intercept hair, food debris, impurities, and odors, softening the water and ensuring every sip is clean and refreshing.

Under 30dB Ultra-Quiet
The low-noise pump operates at under 30dB—about the sound of rustling leaves. It won't disturb sleep, even if placed right beside your bed, and won't frighten sensitive pets.

3.5L Large Capacity with Transparent Water Window
Holds enough water for 1–2 cats for approximately two weeks. The side window lets you check the water level at a glance without dismantling the unit.

Usage Tips

• Fully charge the unit before the first use (approx. 7 hours) and rinse the stainless steel bowl and filter.
• Replace the filter every 2–4 weeks, and rinse the filter sponge and pump weekly to ensure smooth operation.
• Place the fountain in a quiet, frequently traveled area, away from litter boxes and food bowls, to boost your pet's water intake.
• Use Induction Mode for daily use to extend battery life. Use Plug-in Continuous Flow Mode for multi-cat homes or to encourage play.
• In larger homes or multi-cat households, consider placing multiple units in different rooms so every cat has their own "water source."
• If not in use for a long period, empty and dry the basin, and recharge the battery every 2–3 months.

Product Specifications

• Model: Oneisall PW04
• Type: Wireless Pet Water Fountain (Wireless/Plug-in Dual Mode)
• Capacity: 3.5L (approx. 118oz)
• Material: 304 Stainless Steel bowl + ABS body
• Battery: 5000mAh built-in lithium battery
• Battery Life: Up to ~60 days on a full charge (Induction Mode)
• Charging Time: Approx. 7 hours
• Input: DC 5V 1A (USB-C)
• Water Modes: Induction / Timed Circulation / Continuous Flow
• Filtration: 5-layer filtration system
• Noise: <30dB
• Weight: Approx. 0.9kg (2 lbs)
• Dimensions: Approx. 20 × 20 × 15.2 cm
• Suitable for: Cats, small dogs

Detailed specifications are subject to the actual product and original packaging.

Package Contents

• Oneisall PW04 Wireless Fountain (including 304 stainless steel bowl) × 1
• Replacement Filters × 3
• 5V 1A Charger × 1
• USB-C Charging Cable × 1
• Cleaning Brush × 1
• User Manual × 1

Accessories are subject to the actual package.

FAQs

Q: Can it really last 60 days without charging?
A: The 60-day standby refers to the Induction Mode, where water dispenses only when the pet approaches. Using Timed Circulation will reduce battery life, and Continuous Flow mode requires it to be plugged in. Actual performance depends on frequency of use.

Q: Can I use it wireless and plugged in simultaneously?
A: Yes. When plugged in, the fountain operates while charging, so you don't need to pause usage. You can keep it plugged in for daily use and unplug it to move it when needed.

Q: Is the stainless steel bowl dishwasher safe?
A: Yes. The 304 stainless steel bowl is detachable and dishwasher safe. The main control module contains the battery and electronics—do not submerge it; wipe it down with a damp cloth instead.

Q: How often should I change the filter?
A: Generally every 2–4 weeks. Households with multiple pets or harder water may require more frequent changes. 3 filters are included; replacement packs are available from Oneisall.

Q: My cat is afraid of noise; will they be scared?
A: The PW04 operates below 30dB, making it nearly silent. Most cats adapt easily. We recommend starting with Induction or Timed mode, which have gentler flow sounds, to help them adjust.

Q: Is it suitable for dogs?
A: It is suitable for small dogs. The 3.5L capacity and bowl design are better for cats and small dog breeds; owners of large dogs or multiple pets may consider the Oneisall 7L Pro model.

Oneisall PW04 3.5L Wireless Pet Water Fountain—Wireless safety, 60-day battery life, and clean, fresh stainless steel water, keeping your pet healthy and hydrated anytime, anywhere.