{"product_id":"rulefiss-wireless-earbuds-hi-fi-bass-sound-48hrs-noise-cancelling-ip7-waterproof","title":"Wireless Earbuds Bluetooth Headphone Sport - 48H Playtime, IPX7","description":"\u003cp\u003eIn this review the Rulefiss Q38 wireless earbuds come across as a strong choice for active users who want long battery life and secure, comfortable fit without spending a lot. The single biggest reason to buy is the combination of up to \u003cstrong\u003e48 hours\u003c\/strong\u003e of total playtime with an \u003cstrong\u003e800 mAh charging case\u003c\/strong\u003e and a sport-friendly earhook design that stays put during runs and workouts. They are aimed at people who prioritize reliable Bluetooth connection, clear calls and sweat resistance more than audiophile-level tuning.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e3D HiFi Stereo Sound:\u003c\/strong\u003e A 14.2 mm composite diaphragm with AAC\/SBC decoding delivers layered instruments, clear vocals and satisfying bass across 20 Hz-20 kHz for everyday listening.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCrystal Clear Calls:\u003c\/strong\u003e Dual built-in microphones plus CVC 8.0 noise reduction keep speech intelligible by retaining most voice detail in noisy settings.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBluetooth 5.3 Quick Connection:\u003c\/strong\u003e Dual-channel transmission and modern profiles give faster pairing, lower latency and stable connectivity with iOS, Android and Windows devices.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLong Battery Life:\u003c\/strong\u003e Up to 6-8 hours per charge in the earbuds and up to 48 hours total with the compact charging case and quick USBC charging.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComfortable Sport Fit:\u003c\/strong\u003e Lightweight 7 g earbuds with soft flexible earhooks and three silicone tip sizes provide a secure fit for running, gym sessions and other active use.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIPX7 Waterproof:\u003c\/strong\u003e Full sweat and rain protection makes these safe for intense workouts or outdoor exercise.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWho It's For\u003c\/h2\u003e\u003cp\u003eThe Q38 earbuds are best for runners, gym goers and commuters who need dependable wireless audio, secure earhooks and long battery life without spending on premium-brand models. They suit anyone who wants good call clarity and simple touch controls for on-the-go use.\u003c\/p\u003e\u003cp\u003eThey are less appropriate for listeners who demand studio-grade accuracy or audiophile detail, or for users who need advanced app-based EQ and firmware customization, which are not part of this product description.\u003c\/p\u003e\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eExcellent total battery life with a prominent LED percentage display on the charging case.\u003c\/li\u003e\n\u003cli\u003eSecure, lightweight earhook design that remains comfortable for hours and resists sweat and rain.\u003c\/li\u003e\n\u003cli\u003eClear calls supported by dual mics and CVC 8.0 noise reduction.\u003c\/li\u003e\n\u003cli\u003eFast Bluetooth 5.3 pairing and low latency for video and gaming.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSound is tuned for general listening and strong bass rather than critical, highresolution audio work.\u003c\/li\u003e\n\u003cli\u003eFunctionality reports are mixed for some advanced call or feature edge cases according to customer feedback.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eBluetooth version\u003c\/td\u003e\n\u003ctd\u003e5.3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAudio codecs\u003c\/td\u003e\n\u003ctd\u003eAAC, SBC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDriver\u003c\/td\u003e\n\u003ctd\u003e14.2 mm composite diaphragm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePlaytime\u003c\/td\u003e\n\u003ctd\u003e6-8 hrs earbud \/ up to 48 hrs with 800 mAh case\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCharging\u003c\/td\u003e\n\u003ctd\u003eUSBC quick charge, 10 min charge 2 hrs playback\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWaterproof rating\u003c\/td\u003e\n\u003ctd\u003eIPX7\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFit\u003c\/td\u003e\n\u003ctd\u003e45 flexible earhook, three silicone tip sizes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch2\u003eOur Verdict\u003c\/h2\u003e\u003cp\u003eThe Rulefiss Q38 strikes a practical balance between battery endurance, comfortable sport fit and call clarity, making it a strong value for active users and commuters. If you want reliable Bluetooth 5.3 connectivity, long run times and IPX7 protection without premium pricing, they are a sensible buy; serious audiophiles should look for gear with more detailed tuning and app control.\u003c\/p\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eHow long does the charging case hold a charge?\u003c\/strong\u003e\u003cbr\u003eThe included 800 mAh charging case extends total playtime to about 48 hours and shows remaining power with an LED percentage display.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAre these earbuds suitable for running in the rain?\u003c\/strong\u003e\u003cbr\u003eYes, the earbuds are rated IPX7 so they resist sweat and rain during workouts.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDo they support fast pairing and low latency?\u003c\/strong\u003e\u003cbr\u003eYes, Bluetooth 5.3 with dualchannel transmission offers quick reconnection and about 51 ms low latency for video and gaming.\u003c\/p\u003e","brand":"Rulefiss","offers":[{"title":"Default Title","offer_id":46753343799515,"sku":"B0CMTS3P72","price":49.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/71_fNhfA8kL._AC_SL1500_76c0b77f-cef4-4a85-9127-02a72c490f5f.jpg?v=1747818988","url":"https:\/\/gearmusthave.com\/products\/rulefiss-wireless-earbuds-hi-fi-bass-sound-48hrs-noise-cancelling-ip7-waterproof","provider":"GearMustHave","version":"1.0","type":"link"}