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INSCUP 4 Suction Male Masturbator with Magnetic Privacy Lock
Sale price
$139.00
Regular price
$199.99
(-30%)
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Fast discreet Free shipping
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1 year warranty
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INSCUP 4 / At a glance
Automatic rhythm. Manual adjustment. Private storage.
INSCUP 4 combines four automatic suction modes, an independent manual suction control and seven vibration modes. A removable TPE sleeve supports separate cleaning, while the magnetic key-operated lid adds privacy during storage.
4 automatic suction modesSelect an automatic suction pattern using the dedicated control.
Independent manual suctionPress and hold the manual control as directed to increase suction; release to let the suction go.
7 vibration modesChoose a vibration pattern independently or use it alongside suction.
Magnetic privacy lockUse the magnetic key to open the lid; do not force the mechanism.
Controls you can understand
Automatic suction controls the rhythm; the independent manual suction button controls pressure while held. The manual says to hold the manual control for three seconds to reach maximum suction and release the button to release suction. Start with lower intensity and read the full instructions before use.
Model specifications
- Suction
- 4 automatic modes plus independent manual control
- Vibration
- 7 modes
- Sleeve
- Removable TPE inner sleeve
- Storage
- Magnetic key-operated privacy lock
- Materials
- ABS, TPE and silicone, as listed in the manual
- Power
- 1000 mAh rechargeable battery; 3.7 V working voltage
- Charging
- DC 5 V with the supplied USB charging cable
- Water guidance
- Main unit is not waterproof; clean the sleeve separately
Specifications follow the INSCUP 4 user manual currently provided by OTOUCH. A water-resistance rating does not replace the model's use and cleaning instructions.
Care before and after use
The INSCUP 4 main unit is not waterproof. Remove the TPE sleeve for cleaning and do not rinse or submerge the electronic body. Use water-based lubricant only.
- Switch off and disconnect the charging cable. Remove the sleeve according to the manual.
- Wash the sleeve as directed using a compatible mild cleanser and rinse away residue.
- Let the sleeve dry completely, including its internal channel, before aligning it and reinserting it.
- Keep the magnetic key available for the lid. Do not force the lock or operate while charging.
Stop if you experience pain, numbness or irritation. Do not use damaged parts. Read the cleaning and maintenance guide for the full care routine.
Compare before you choose
Compare AIRTURN 2, AIRTURN 4 and INSCUP 4 side by side using the official model manuals.
Compare AIRTURN 4 if you prefer seven suction modes. For suction with built-in heating, see AIRTURN 2.
Review shipping and discreet packaging, the return and refund policy and manufacturing-defect support before ordering. Current gift offers and included accessories are shown separately on this product page.
1) How to choose the right toy
Start with your goal: gentle relaxation, stronger intensity, targeted stimulation, or hands-free use.
Beginner-friendly picks: smaller/medium size, multiple intensity levels, and a simple shape (easy to control).
Couples: look for quiet, remote/app control (optional), and designs that don’t get in the way.
2) Materials that feel better (and are safer)
- Body-safe silicone (smooth, soft, easy to clean) is the most popular.
- Avoid mystery materials. If you’re sensitive, choose non-porous materials (silicone, stainless steel, glass) and always clean before/after use.
- If you have allergies/skin sensitivity, patch-test by touching the material to your skin first.
3) Power, noise, and waterproofing
- USB rechargeable = convenient and usually stronger than battery-only.
- If you need privacy, choose low-noise models and check reviews/specs.
- Water resistance vs waterproof: waterproof is easier for cleaning and shower use but always follow the rating (e.g., IPX6 is strong water resistance, not full submersion).
4) Lube compatibility (important!)
- Water-based lube works with almost everything and is the safest choice for silicone toys.
- Silicone-based lube can damage some silicone toys over time (unless the brand says it’s compatible).
- Use more lube if there’s any friction—comfort first.
5) Cleaning, storage, and sharing
- Wash before and after: warm water + mild soap or toy cleaner, then dry fully.
- Don’t share without protection: if sharing, use a fresh condom on the toy and change it between partners/uses.
- Store in a clean pouch/box, away from dust and away from other toys (some materials can react when touching).
6) Safety basics
- Start on low intensity, go slow, and stop if there’s pain, numbness, or irritation.
- For any toy designed for deeper insertion, make sure it has a wide/flared base (this is a key safety feature).
- If you’re pregnant, have a medical condition, or experience persistent pain, check with a clinician.
At OTOUCH, we prioritize your privacy with every order.
Your package will arrive in plain, unbranded packaging, with no product details visible from the outside. We don’t include marketing inserts or anything that could reveal what’s inside just your items, packed securely.
On your statement and tracking information, both the charge and shipment details are discreet as well. Our goal is simple: to ensure you feel comfortable ordering, knowing your privacy is safeguarded from checkout to delivery.
We proudly ship to the following countries and regions:
- European Countries
- Japan
- Australia
- Canada
- United States
- United Kingdom
- South Korea
- HongKong
If you have any questions about packaging, billing names, or delivery instructions, please reach out here: Contact Us
What Is the Second-Generation Suction Technology?
At OTOUCH, "second-generation suction" is not about simply increasing suction power—it represents a fundamental rethinking of how suction should feel.
From Passive Suction to Active Clamping
Traditional suction-based male masturbators rely on negative pressure within a sealed chamber to create sensation. However, under vacuum, the soft inner sleeve tends to expand—particularly near the base—making it difficult to maintain a close, consistent fit around highly sensitive areas such as the glans and coronal ridge.
The result is a common limitation: strong pulling force, but insufficient precision and tightness where stimulation matters most.
OTOUCH addresses this with a redesigned system that combines suction with an active airbag compression structure. As suction is applied, the integrated airbag contracts in sync, exerting controlled inward pressure on the inner sleeve. This creates a dynamic tightening effect, especially around key sensitive zones, ensuring a more enveloping and responsive fit.
Key Advantages
1. More Natural Pressure Distribution
Instead of concentrating stimulation in a single direction, the coordinated action of suction and compression distributes pressure more evenly. This produces a sensation that more closely mimics natural physiological contact.
2. Synchronized Depth and Tightness
Suction depth and contraction intensity are directly linked—the deeper the suction, the tighter the fit. This clear feedback relationship enhances user perception, allowing for a more engaging and interactive experience.
3. Greater Stability and Comfort
By balancing suction with controlled compression, the system avoids the abruptness and fatigue often caused by excessive suction alone. The result is smoother, more sustainable stimulation.
A More Advanced Sensory Experience
The true value of second-generation suction lies in its ability to deliver layered, adaptive, and realistic stimulation. Rather than relying on sheer intensity, it creates a nuanced experience that remains comfortable and satisfying over extended use.
GEN 2 SUCTION TECH
REAL CONTRACTION's
PRIVACY LOCK DESIGN
MANUAL & AUTO DUAL CONTROL
Product Specifications
WHAT'S INCLUDED
packaging box
Inscup 4
usb cable
User Manual
Industry Awards
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Featured by Authorities
j
its look like water bottle haha,, love it
N
Works ok but needs stronger clamping on my penis
A
Well designed, it’s not a huge unit around the size of a large yeti cup . Locking mechanism works well for discrete storage. Recommend the heating unit and drying system for longevity.
c
my penis were little big but the suction of product was to hard which give me more pleasure i would say not bad
m
very smooth i like it
f
highly recommended
D
The second-generation suction technology is what sold me. The suction feels smooth and consistent, and the seven modes provide enough variety to keep things interesting. Cleaning is also much easier than I expected thanks to the removable sleeve.
m
the suction was to strong
y
highly recommended...
