1. Introduction
Thank you for choosing the Voice-tank Portable Cordless Handheld Vacuum Cleaner, Model vac103. This versatile 4-in-1 device is designed for efficient cleaning, blowing, inflating, and suction, making it ideal for various applications including car interiors, desks, keyboards, and small household tasks. This manual provides essential information for safe and effective use, maintenance, and troubleshooting.
2. Product Overview
The Voice-tank vac103 is a compact and powerful cleaning solution. It features a brushless motor providing up to 16000Pa suction power and offers two operating modes for different cleaning needs. Its lightweight design and comprehensive accessory kit ensure thorough cleaning in hard-to-reach areas.

Figure 2.1: What's in the Box - A visual guide to all components: main vacuum body, extended hose, long suction nozzle, air bleed nozzle, air inflation nozzle, blower nozzle, user manual, small brush nozzle, Type-C charging cable, brush suction nozzle, and floor nozzle.
Included Components:
- Main Vacuum Unit
- Multi-surface Brush
- Crevice Nozzle
- Push-in Brush
- Pet Brush
- Flexible Hose
- Little Cleaning Brush
- Type-C Charging Cable
- Short Blow Nozzle
- Long Blow Nozzle
- Multi-function Air Blower
- Blow Nozzle Brush
3. Setup
3.1 Charging the Device
Before first use, fully charge the vacuum cleaner. Use the provided Type-C charging cable. The device is equipped with 2 x 12V batteries (included).
- Connect the Type-C cable to the charging port on the vacuum cleaner.
- Connect the other end to a standard charger (15W or higher), computer, or car charger.
- Charging time is approximately 2.5 hours for a full charge.
- Do not use the vacuum while it is charging.

Figure 3.1: Type-C Fast Charging - The vacuum cleaner connected to a Type-C charging cable, illustrating its fast charging capability. Indicators show 'Fully Charged' and 'Charging' states.
3.2 Attaching Accessories
Select the appropriate nozzle or brush for your cleaning task and firmly attach it to the vacuum's intake or exhaust port depending on whether you need suction or blowing functionality.
4. Operating Instructions
4.1 Power On/Off and Suction Modes
- Press the power button once to turn on the vacuum in Eco mode (10000Pa suction). This mode provides 30-40 minutes of runtime.
- Press the power button a second time to switch to Max mode (16000Pa suction). This mode offers 10-20 minutes of runtime.
- Press the power button a third time to turn off the device.
- Note: Suction power may decrease in Max mode when the battery is low. Recharge promptly after extended high-speed use.
4.2 Vacuuming
Attach the desired suction nozzle (e.g., crevice nozzle, multi-surface brush, pet brush) to the main intake port. Turn on the vacuum and select the appropriate suction mode. Move the nozzle over the surface to be cleaned, ensuring all debris is collected.

Figure 4.1: Car Interior Cleaning - Demonstration of the vacuum's dual functionality, showing it being used to vacuum car seats and blow dust from vents.

Figure 4.2: Using the Flexible Hose - The flexible hose attachment is shown in use, effectively cleaning tight spaces and crevices within a car's interior.
4.3 Blowing
Attach a blow nozzle (short or long) to the exhaust port of the vacuum. Turn on the device and use it to clear dust from keyboards, car vents, or other delicate areas. The powerful airflow can also be used to clear light debris like leaves.

Figure 4.3: Keyboard Dusting - The blower function is demonstrated, effectively removing dust and debris from a laptop keyboard.
4.4 Inflating and Air Pumping
For inflating items like air mattresses or toys, attach the air inflation nozzle to the exhaust port. For vacuum storage bags, attach the air bleed nozzle to the exhaust port and use it to remove air.

Figure 4.4: Inflating an Air Mattress - The inflation function is shown, with the vacuum cleaner inflating an air mattress, highlighting its versatility.

Figure 4.5: Vacuum Storage Bag Compression - The vacuum's suction capability is used to compress a vacuum storage bag, demonstrating its utility for space-saving.
5. Maintenance
5.1 Emptying the Dust Cup
Regularly empty the 170ml dust cup to maintain optimal suction power.
- Ensure the vacuum is turned off.
- Press the latch button to open the dust cup cover.
- Pour out the collected debris into a trash bin.
- Close the dust cup cover securely until it clicks.

Figure 5.1: One-Touch Dust Removal - Illustration of the one-touch dust removal mechanism, showing how to easily open the dust cup and empty collected debris.
5.2 Cleaning the HEPA Filter
The HEPA filter captures 95.99% of dust and particles and should be cleaned regularly to ensure efficient operation.
- After emptying the dust cup, gently pull out the HEPA filter system.
- Rinse the filter with clean water.
- Allow the filter to air dry completely before reinserting it into the vacuum cleaner. Do not use the vacuum with a wet filter.

Figure 5.2: Three Simple Steps for Cleaning - A visual guide to the three simple steps for cleaning the vacuum: 1. One-touch dust removal, 2. Pulling out the filter system, and 3. Washing the filter and letting it dry.
6. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No power/Doesn't turn on | Battery is depleted. | Charge the vacuum cleaner fully using the Type-C cable. |
| Weak suction power | Dust cup is full or filter is clogged. | Empty the dust cup and clean the HEPA filter. Ensure the filter is dry before reinserting. |
| Attachments do not fit securely | Incorrect attachment or not fully inserted. | Ensure you are using the correct attachment for the desired function (suction/blowing) and push it firmly until it is secure. |
| Short runtime | Using Max mode continuously or battery degradation. | Use Eco mode for longer runtime. Ensure the device is fully charged. If issues persist, contact customer support. |
7. Specifications
- Model Name: Portable Cordless Car Vacuum (vac103)
- Brand: Voice-tank
- Special Feature: Portable Cordless Vacuum, 4-in-1 Functionality (Vacuuming, Blowing, Inflating, Air Pumping)
- Filter Type: HEPA Filter
- Suction Power: Up to 16000Pa (Max Mode)
- Motor: Upgraded Max 80,000 RPM Brushless Motor
- Wattage: 120 watts
- Battery Life: 30-40 minutes (Eco mode), 10-20 minutes (Max mode)
- Charging Time: Approximately 2.5 hours (Type-C Fast Charging)
- Dust Cup Capacity: 170 Milliliters
- Item Weight: 1 pound (461 g)
- Product Dimensions: 11"L x 2"W x 2"H
- Noise Level: 69 Decibels
- Number of Speeds/Power Levels: 2
- Controller Type: Push Button
- Control Method: Touch
- Indoor/Outdoor Usage: Indoor
- Batteries: 2 x 12V batteries (included)
8. Warranty and Support
For warranty information, product support, or any inquiries not covered in this manual, please refer to the official Voice-tank website or contact their customer service directly. Keep your purchase receipt for warranty claims.