Rulefiss is a smart device brand that was founded in 2018, offering a wide range of products including smartwatches, Bluetooth earbuds, and Bluetooth speakers. By combining fashion and innovative technology, the brand aims to transform smart devices into personal style carriers.

The New Rulefiss Q38 Sport Earbuds, the latest upgrade, feature Bluetooth 5.3 technology, providing a 150% increase in transmission speed and a 50% improvement in stability compared to Bluetooth 5.2. Equipped with an AAC/SBC audio decoder and a 14.2mm dynamic unit, the earbuds deliver detailed vocals, full mids, and deep bass, ensuring an immersive audio experience.

Addressing noise reduction, the Q38 earbuds are equipped with 2 microphones and CVC 8.0 technology, which can retain 80% of the sound, resulting in clearer calls. The earbuds are also compatible with most Bluetooth-enabled devices, including phones, tablets, and laptops.

The box contents include a USB-C cable, a 48-hour charging case, two Q38 Bluetooth headsets, six soft silicone ear caps (L/M/S), and a user manual in multiple languages.

Waterproofed to an IP7 standard, the Q38 sport earbuds are designed to withstand sweat and rain, ensuring their longevity and making them suitable for exercise and sports activities.

The 3D stereo sound feature of the Q38 earbuds is achieved through the use of an AAC/SBC audio decoder and a 14.2mm composite diaphragm, which increases the audio frequency by 45% (20Hz-20kHz). This results in layered instrumental details, clear vocals, resonant bass, and authentic highs, providing a pure music listening experience.

Bluetooth 5.3 technology and dual-channel transmission ensure a quick and stable connection, with a 100ms low latency, and compatibility with iOS, Android, and Windows systems. The earbuds automatically connect when removed from the charging case after the initial pairing.

The wireless earphones come with an 800mAh compact charging case that features a LED power display, allowing users to monitor the remaining power of both the earbuds and the case. With a single charge, the earbuds can provide up to 6-8 hours of playtime, and the charging case can boost this to 48 hours.

Designed for comfort during sports and exercise, the Q38 earbuds feature a soft, ultra-light, and flexible 45° earhook structure, along with three different sizes of high-quality silicone earplugs (S/M/L). The IP7 waterproof rating ensures protection from sweat and rain.

The earbuds also offer smart touch control, allowing users to conveniently play, pause, adjust volume, answer and end calls, and activate voice assistants. The refined appearance of the earbuds is enhanced by a 100% glossy coating, smooth lines, and a comfortable touch.

product information: