How to buy original Rulefiss wireless earbuds in India?

Purchase original Rulefiss Q38 wireless earbuds from crowcrowcrow.com. We import directly from authorized US retailers and authorized brand partners, ensuring factory-sealed products. All customs duties and GST are included in your price, with ExpressBox tracked delivery to your pincode.

Are these Rulefiss earbuds compatible with Android and iOS devices in India?

Yes, the Rulefiss Q38 wireless earbuds are widely compatible with almost all Bluetooth-enabled devices, including Android smartphones, iPhones, PCs, laptops, and smartwatches. They utilize Bluetooth 5.4 for a stable connection across different operating systems.

How long do the Rulefiss Q38 earbuds last on a single charge and with the case?

A single charge provides 6-8 hours of normal usage. The compact 800mAh charging case boosts the total playtime to an impressive 56 hours, ensuring you have music or clear calls throughout your day and week.

Can I use these earbuds for workouts and running in India?

Absolutely. The Rulefiss Q38 earbuds feature an IPX7 waterproof rating, protecting them from sweat and rain, and a secure 45° earhook design with three ear tip sizes for a comfortable, stable fit during intense activities like running or gym workouts.

Do these earbuds offer active noise cancellation for calls?

Yes, the Rulefiss Q38 headphones feature ENC (Environmental Noise Reduction) technology with 4 microphones that suppress up to 80% of background noise during calls, ensuring your voice remains crystal clear for effective communication.

What is the latency of these wireless earbuds for watching videos or gaming?

These earbuds offer a low latency of 41ms with Bluetooth 5.4, which is excellent for watching videos and general use. While suitable for casual gaming, they are not specifically designed for competitive gaming where ultra-low latency is critical.

How do I reset or pair the Rulefiss Q38 earbuds?

To pair, simply take the earbuds out of the charging case; they will automatically connect to the last paired device. For a reset, typically press and hold the charging case button for a few seconds until an indicator light confirms the reset.

Rulefiss Wireless Earbuds Sport, Bluetooth 5.4 Headphones, 56Hrs Playtime, IPX7 Waterproof

Name: Rulefiss Wireless Earbuds Sport, Bluetooth 5.4 Headphones with Earhook, 56Hrs Playtime, IPX7 Waterproof | Hi-Fi Stereo Sound
Brand: Rulefiss
SKU: egq5075
Price: 7006.00 INR
Availability: InStock

About this item

Rulefiss Q38 wireless earbuds bring advanced Bluetooth 5.4 technology to India, ensuring a stable, low-latency connection for immersive Hi-Fi stereo sound. With 14.2mm dynamic drivers and ENC noise reduction for crystal-clear calls, these earbuds are perfect for music lovers and professionals alike. Enjoy up to 56 hours of total playtime with the compact charging case, featuring a real-time dual LED display.

Designed for an active lifestyle, the Q38 earbuds feature a comfortable, secure 45° earhook structure and weigh only 8 grams each. The IPX7 waterproof rating protects against sweat and rain, making them ideal for workouts, running, and gym sessions. The included silicone ear tips in three sizes ensure a perfect fit for prolonged wear without discomfort.

Experience seamless control with multi-function touch panels for playback, volume, calls, and voice assistant activation. These earbuds are widely compatible with iOS, Android, PCs, and laptops. Imported directly, all customs duties and GST are included in your price, with fast, tracked delivery via ExpressBox to your pincode.

Key Features

360 Surround Hi-Fi Stereo Sound, Crystal Clear Calls — The 2025 model Rulefiss wireless headphones sport produce impressively beautiful sound, using an AAC/SBC audio decoder and a 14.2mm composite diaphragm to increase the audio frequency by 75% (18Hz-25kHz). Instrumental details are layered, vocals are clear, resonant bass and authentic highs ensure you feel pure music. At the same time, the Bluetooth headphones have built-in 4 clear microphones and ENC noise reduction technology, they can retain 80% of the sound, making the call clearer.
2025 Upgraded Bluetooth 5.4 — Rulefiss Q38 wireless earbuds sport uses Bluetooth 5.4 technology and dual-channel transmission. The Bluetooth earbuds offer enhanced anti-interference capabilities and optimized channel hopping mechanisms, effectively shielding against external interference. Compared with Bluetooth 5.3, the transmission speed is +100%, the stability is +70%, 41ms low latency.
56 Hrs Playtime, Dual Power Display — The Bluetooth headphones in ear charging case with LED power display shows remaining power in percentage. Charging case presents its battery from 1%-100% to let you know the current power status of your running headphones and charging case anytime anywhere. Up to 6-8 hours playtime of normal usage on a single charge and boost that to 56 hours playtime with the 800mah compact charging case. With type-C quick charge, it only takes 1.5 hrs to charge the case.
Comfortable Sports Earhooks, IP-X7 Waterproof — Unlike most sport headphones wireless, Q38 headphones are designed with a soft, ultra-light and flexible 45° earhook structure, which can fit your ears smoothly. And a single earbud is as light as 8g, equipped with 3 different sizes of high-quality silicone earplugs (S/M/L). Also with IP-X7 certified waterproof technology, you can protect the sport earbuds from sweat and rain during sports or daily use. Best choice for workout, running, gym.
Smart Touch Control, Refined Appearance — Multi-function touch panel on each sport ear bud helps to play, pause, adjust volume, answer, end calls, activate siri and google assistant more convenient. In addition, the appearance of the sport headset is made of 100% glossy coating, with smooth lines, comfortable touch and exquisite appearance.

Why choose this product

Immersive Sound and Clear Calls

Rulefiss Q38 earbuds deliver a superior audio experience with 14.2mm dynamic drivers and AAC/SBC decoding for rich bass and clear vocals. The advanced ENC noise reduction technology, suppressing up to 80% of background noise, ensures your calls are crystal clear, even in noisy Indian cities. This focus on audio fidelity and communication clarity sets them apart from generic local options that often compromise on sound quality or microphone performance.

Ideal for Active Lifestyles, Not for Gaming

These earbuds are perfect for fitness enthusiasts, runners, and professionals needing reliable audio on the go, thanks to their IPX7 waterproof rating and secure earhook design. However, while they boast low latency at 41ms, they are not specifically optimized for competitive gaming where ultra-low latency is critical. For dedicated gamers, consider specialized gaming headsets.

How to use

Connect the included Type-C cable to the charging case and a power source. A full charge takes approximately 1.5 hours, indicated by the LED display showing 100%. — Charge the Case
Open the charging case with the earbuds inside. They will automatically enter pairing mode. On your device (phone, laptop), go to Bluetooth settings and select 'Rulefiss Q38' to connect. — Pair with Your Device
Use the touch controls on each earbud: tap to play/pause, double-tap to skip tracks, long-press to adjust volume, and answer/end calls or activate voice assistants. — Control Playback and Calls

Example scenarios

Typical situations where Rulefiss Wireless Earbuds Sport helps — illustrative scenarios, not customer reviews.

Scenario 1

Illustrative example

Where it helps

Daily commute in Mumbai or Delhi traffic, needing clear calls and uninterrupted music.

How this product helps

The Rulefiss Q38's Bluetooth 5.4 and ENC noise reduction ensure stable connections and clear voice during calls, while 56 hours of total playtime means you won't run out of battery on long journeys.

Scenario 2

Illustrative example

Where it helps

Intense gym workouts or running sessions in humid Indian weather, requiring sweat-proof and secure earbuds.

How this product helps

With an IPX7 waterproof rating and a secure earhook design, these earbuds withstand sweat and rain, staying comfortably in place during rigorous exercise, unlike standard earbuds that may fall out or get damaged.

Technical specifications

Setup & usage

Earbud Playtime	6-8 hours
Total Playtime with Case	56 hours
Charging Case Battery	800 mAh
Charging Case Charge Time	1.5 hours (Type-C Quick Charge)
Cost per use	56 hours total playtime — ₹125 per hour
Shelf life after opening	12 months (category default for electronics)
Reapplication math	56 hours total playtime covers over a week of daily use.
Contraindications	Not recommended for competitive gaming due to 41ms latency.
Included Ear Tips	S/M/L sizes

How we compare

Feature	Rulefiss Wireless Earbuds	Others
Bluetooth Version	Bluetooth 5.4 — Faster speeds, improved stability, 41ms low latency.	Typically Bluetooth 5.0-5.3 — may have higher latency and less stable connections.
Total Playtime	56 hours total — ₹125 per hour per hour of use.	Varies widely, often 20-40 hours total, at ₹2,000-5,000.
Water Resistance	IPX7 Certified — Fully waterproof for sweat and rain.	Often IPX4-IPX5 — sweat-resistant but not fully waterproof.
Call Clarity	ENC Noise Reduction (80% background noise suppression).	Basic microphone, often struggles with background noise in calls.
Fit for Sports	Secure earhooks, 3 ear tip sizes, 8g per earbud.	Standard in-ear fit, may lack earhooks, potentially less secure during intense activity.

SKU	egq5075
Brand	Rulefiss
Model Name	Q38
Color	Deep Rose Gold
Form Factor	In-Ear with Earhook
Material	Acrylonitrile Butadiene Styrene (ABS), Plastic
Weight per Earbud	8 grams
Water Resistance	IPX7 Certified
Bluetooth Version	5.4
Bluetooth Range	15 meters
Audio Latency	41 milliseconds
Driver Size	14.2 mm Dynamic Driver
Frequency Response	18 Hz - 25 kHz
Impedance	32 ohms
Noise Control	ENC Noise Reduction (Calls), Passive Noise Cancellation (Music)
Control Type	Touch Control
Voice Assistant Support	Siri, Google Assistant
Compatibility	iOS, Android, PC, Laptops, Smart Watches, TVs
Country of Origin	Not stated by manufacturer — US retail version, sourced from authorized US retailers and authorized brand partners

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Spec
Price

Rulefiss Wireless Earbuds Sport, Bluetooth 5.4 Headphones with Earhook, 56Hrs Playtime, IPX7 Waterproof | Hi-Fi Stereo Sound

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About this item

Key Features

Why choose this product

How to use

Example scenarios

Technical specifications

Setup & usage

How we compare

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