Wireless Earbuds Sport, Bluetooth 5.4 Headphones Bass Hi-Fi Stereo Over Ear Buds, 56Hrs CFZNoise Cancelling Headset with Earhook, IP-X7 Waterproof Earphones Workout Running for Laptop Pad Android iOS

360 Surround Hi-Fi Stereo Sound, Crystal Clear CallsThe 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 5.4Rulefiss 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 DisplayThe 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.

wireless earbuds bluetooth

2025 New Rulefiss Q38 sports Bluetooth headphones, brand new upgrade

AAC/SBC audio decoder + 14.2mm dynamic unit
Vocals and instruments are detailed, the mids are full, and the bass is deep.
CVC 8.0 noise reduction technology
Equipped with 2 mics and CVC 8.0 technology, 80% of the sound can be retained, making calls clearer.
Wide Compatibility
Compatible with most Bluetooth-enabled phones, tablets and laptops.

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Box Contents

USB-C cable * 1

48Hrs charging box * 1

Q38 Bluetooth headset * 2

Soft silicone ear caps * 6 (L/M/S)

User Manual (English, Spanish, French, etc) * 1

Monaural/Binaural Mode
Each Bluetooth headphones can be used alone and shared with friends at any time. Or use two headphones simultaneously for powerful stereo sound.(Cannot connect 2 devices at the same time.)
IP7 Waterproof
IP7 waterproof technology efficiently protects the sports headphones from damage caused by sweat and rain to ensure their lifespan. They are ideal for exercise and sports.

Rulefiss is a smart device brand founded in 2018. We offer a wide range of products including smartwatches and Bluetooth earbuds, as well as Bluetooth smart devices such as Bluetooth speakers. We combine fashion and innovative technology to turn smart devices into carriers of personal style.
Q38 NEW Sport Earbuds
Rulefiss Sport Earbuds

wireless earbuds bluetooth

2025 New Rulefiss Q38 sports Bluetooth headphones, brand new upgrade

AAC/SBC audio decoder + 14.2mm dynamic unit

Vocals and instruments are detailed, the mids are full, and the bass is deep.

CVC 8.0 noise reduction technology

Equipped with 2 mics and CVC 8.0 technology, 80% of the sound can be retained, making calls clearer.

Wide Compatibility

Compatible with most Bluetooth-enabled phones, tablets and laptops.