Cool of Spark

TELESIN Master Grip

for iPhone 17 Pro / Pro Max

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7600mm² Graphene

Grid design for efficient heat conduction

3200mAh Battery

MagSafe wireless charging,
boosts 4K 60fps recording >1 hour

Retro Classic Design

Hand-applied leather, intricate craftsmanship for refinement

Physical Filter Adapter

Magnetic slider supports UV | CPL | VND | Black Mist

Comfortable Grip

Ergonomically tuned curves
for all hand sizes

Hardware-
Software
Integration

Customizable controls
with Reef Color App

Precision CNC
Thumb Rest

Intuitive grip prevents
screen mis-touches

Pro Camera
Experience

Shutter, dial, Fn button
—full camera controls
replicated

The iPhone 17 series takes mobile imaging to the next level, making it the camera you can trust anytime, anywhere. Its upgraded pro-level video performance brings cinematic storytelling within reach, giving everyday creators the tools to produce work that once felt out of reach.

At TELESIN, we stand with every creator chasing a filmmaking dream. Our mission is simple: build tools that are intuitive, dependable, and capable of delivering professional-grade results — without the professional-grade price tag. We believe great filmmaking should be for everyone, not just those with big budgets.

The all-new TELESIN Master Grip for iPhone 17 Pro series is the boldest step toward that vision. For the first time, we’ve engineered high-spec video cooling into the product itself with an ultra-large graphene thermal layer. Paired with refined ergonomics, precision-machined details, and effortless controls, it helps the next generation of iPhone creators overcome limits, keep creating, and capture their vision without compromise.

Cool Your iPhone, Spark Your Inspiration

Every creator strives for the best possible video quality — but pro-level performance comes with a cost: heat. Inside the iPhone, space is scarce, leaving virtually no path for heat to escape. Most accessories simply seal it in. At TELESIN, we choose a different approach —
we let it breathe.

Enhanced Heat
Dissipation

A massive 7,600mm² graphene thermal layer lines nearly the entire inner surface of the case, making full contact with the iPhone’s back to rapidly and efficiently draw heat away. Precision-cut vent grilles boost airflow, accelerating cooling and keeping your device comfortable to hold.
This constant release of heat doesn’t just extend the lifespan of internal components — it keeps the iPhone’s chip running at its full performance baseline. That means no thermal throttling, no sudden screen dimming, and smoother, more consistent footage even during extended, high-spec shooting sessions.

3,200mAh Magnetic
Wireless Charging Grip

Another challenge when shooting high-spec video on the iPhone is power consumption. Running the chip at peak performance for extended periods rapidly drains the battery — cutting short both your shoot and your day. The TELESIN Master Grip addresses this with a built-in 3,200mAh battery and wireless charging support. Designed for stability and safety, you’ll still have ample charge for everyday use — even after an intense day on set.

Balanced Center
of Gravity

The extra battery also delivers a key ergonomic upgrade: a rebalanced center of gravity. On heavier setups like the iPhone 17 Pro Max (230g+), the redistributed weight makes the rig feel lighter, steadier, and more comfortable in hand. This improved balance directly translates into smoother, more controlled footage — a difference every filmmaker will notice.

Lightweight Strength,
Crafted for Comfort

The TELESIN Master Grip is built from sturdy yet lightweight PC material, keeping your daily carry light without compromising durability. For a more secure hold, the grip is wrapped in eco-friendly, silicone-based synthetic leather that’s soft to the touch, non-slip, and sweat-resistant for long shooting days. The magnetic charging section features a tapered “waistline” that increases surface area for heat dissipation, strictly adhering to the Form Follows Function principle — no unnecessary ornamentation, only purposeful design.

The TELESIN Master Grip is built from sturdy yet lightweight PC material, keeping your daily carry light without compromising durability. For a more secure hold, the grip is wrapped in eco-friendly, silicone-based synthetic leather that’s soft to the touch, non-slip, and sweat-resistant for long shooting days. The magnetic charging section features a tapered “waistline” that increases surface area for heat dissipation, strictly adhering to the Form Follows Function principle — no unnecessary ornamentation, only purposeful design.

Ergonomaic Camera
Grip Curves

Its curves and leather coverage have been refined through extensive field testing with over 100 experienced photographers, then refined through multiple iterations to achieve a natural fit for most hand shapes. The result delivers 90% of the comfort of a top-tier professional camera grip — surpassing most compact CCD cameras. Due to the large sweeping surfaces, each leather wrap is applied entirely by hand by craftsmen with over a decade of experience, ensuring a flawless, seamless finish.

CNC-Machined Thumb Rest — A Natural, Intuitive Grip

Smartphone shooting differs from traditional cameras in one key way: the large, sensitive touchscreen often leaves no natural resting spot for your thumb when using a standard grip. This can lead to awkward handling and accidental touches.

CNC-Machined Thumb
Rest

The TELESIN Master Grip solves this with a precision CNC-machined aluminum thumb rest. A finely milled anti-slip texture conforms to the pad of your thumb, while a subtle concave curve naturally guides it into position. This small but significant detail improves stability when composing shots, enhances precision when zooming, and minimizes unintended screen input — letting you stay focused on your framing.

Just Like a Pro Camera

Buttons, Dials,
and Shutter

The Control Dial

Fn Button

Let’s be honest — for essential camera operations like focus, zoom, and shutter release, touch controls simply can’t match the precision of physical ones. The gold standard was set long ago by professional camera makers, and TELESIN sees no reason to abandon it.

The control dial is finely tuned with precise detents and damping, letting you switch modes effortlessly with one hand. The zoom rocker is equally refined — spring-balanced and rigorously tested for ideal resistance, quick return, and smooth operation.

The customizable Fn button, via the TELESIN Reef Color app, expands the dial’s versatility, enabling quick access to functions like filter switching, intensity adjustment, exposure control, white balance, shutter speed, and ISO — just like on a pro camera. It can even trigger still shots or pause recording mid-shoot, putting as much of the iPhone’s camera power as possible into one hand.

Slide, Snap, Create
— Magnetic Filter
Mount

The unique atmosphere and post-production flexibility that physical filters offer are irresistible to professional photographers — and impossible to replicate with algorithms. On the TELESIN Master Grip, the upper section of the case features a CNC-machined metal lens module protector that also doubles as a magnetic filter mount. Three high-performance magnets hold filters securely in place, while the design itself increases surface area for heat dissipation. The result is fast, precise, and tool-free filter changes. Current options include CPL to cut reflections and VND for smooth long-exposure effects, with more filters coming soon — expanding the creative boundaries of what your iPhone can capture.

Reef Color App — Grip
and iPhone, Perfectly in
Sync

Developed by TELESIN for passionate creators, the Reef Color app is powered by advanced AI trained on millions of award-winning photographs taken with hundreds of legendary cameras. The result: four signature looks — Fuji Nostalgia, Polaroid Playfulness, Vintage Film Story, and Canon Clarity — all built in and ready to use. Paired with the iPhone’s powerful computational photography, these filters adjust color and tone at the single-pixel level, delivering images that feel timeless — even in today’s digital-first world.

When used with the TELESIN Master Grip’s control dial, you can fine-tune filter intensity with precision. Four additional classic profiles — Hasselblad X, Faded Film, and Cool White CCD — can be adjusted in 1% increments for every 5° turn of the dial, giving your work a signature style that’s unmistakably yours.