Rulefiss Q38 Bluetooth 5.3 Earbuds Purple 48h IP7
Purple in-ear headphones with Bluetooth 5.3, active noise cancelling, IP7 waterproofing, and 48-hour battery life
- TypeIn-Ear
- ColorPurple
- Driver Unit14.2 millimeters
- Frequency Response5Hz-20KHz
- THDIn Ear
- Input Impedance24 ohms
- 48 hours playtime with 800 mAh charging case
- Bluetooth 5.3 for stable connection to phones and laptops
- IP7 waterproof rating resists sweat and rain during workouts
- 2 mm dynamic driver delivers deep bass and detailed mids
- CVC 8.0 dual-mic technology keeps calls clear in noisy places
Rulefiss Q38 Bluetooth 5.3 Earbuds
The Rulefiss Q38 are true wireless in-ear headphones built for sport and daily listening. They use Bluetooth 5.3 for a stable link to phones, tablets and laptops. Active noise cancellation and CVC 8.0 dual-microphone processing target clearer calls and music. The purple finish and flexible earhooks aim to stay secure during movement.
48-hour case and IP7 waterproofing
An 800 mAh charging case provides up to 48 hours of total play time and recharges via USB-C. IP7-rated shells protect the internals from sweat and heavy rain during workouts. Three sizes of silicone tips are included to help seal the ear canal. Each bud can be used alone in mono mode or paired for stereo, though only one device connection is supported at a time.
14.2 mm drivers and 108 dB sensitivity
A 14.2 mm dynamic driver per earbud delivers a quoted response of 5 Hz to 20 kHz at 24 ohms impedance. High 108 dB sensitivity means loud volume is reachable with little power draw. AAC and SBC codecs handle the wireless audio stream. The design favours sustained output for long sessions rather than short peak bursts.
Highlights
- 48 hours playtime with 800 mAh charging case
- Bluetooth 5.3 for stable connection to phones and laptops
- IP7 waterproof rating resists sweat and rain during workouts
- 2 mm dynamic driver delivers deep bass and detailed mids
- CVC 8.0 dual-mic technology keeps calls clear in noisy places
Specifications
| Brand | Rulefiss |
|---|---|
| Series | 38 |
| Model | Q38 |
| Part Number | Q38 |
| Type | In-Ear |
| Color | Purple |
| Driver Unit | 14.2 millimeters |
| Frequency Response | 5Hz-20KHz |
| THD | In Ear |
| Input Impedance | 24 ohms |
| Signal to Noise Ratio(SNR) | 108 decibels |
| Power Supply | battery, a, lithium_polymer, true |
| Sensitivity | 108 decibels |
| Connector | USB |
| Ear Coupling | Single Ear |
| Cord Length | Q38 Bluetooth headphones x 2 |
| Weight | 71.8 grams |
| Noise Cancelling | Active |
| Wireless Type | Bluetooth |
| Battery | 48 hours |
| Operating Time | 48 hours |
| Charge Time | 2 hours |
| Distance | 10 meters |
| Contains Embedded Battery | battery |
| Microphone Impedance | ~2K ohm |
| Microphone Frequency Response | 20Hz-20KHz |
| Microphone Signal to Noise Ratio(SNR) | 108 decibels |
| Microphone Sensitivity | 108 decibels |
| Features | active_noise_cancellation, 5.3, 48 hours, Without Cable, Volume Control, touch, Wireless, In Ear, dynamic_driver, 24 ohm, 10 meters, Cable |
| Package Contents | Cable, 1 x 800 mAh charging box, Q38 Bluetooth headphones x 2, Anti-dirty ear caps x 6 (L/M/S) |
Questions about this item
How long does the 800mAh charging case keep the Q38 earbuds running before it needs a recharge?
The case and earbuds together deliver up to 48 hours of playback before you need to plug the case back in.
Do the earbuds get hot or noisy during an all-day workout?
The in-ear design weighs 71.8 grams total and uses passive cooling only, so they stay comfortable and silent during extended sessions.
What device and port must I already have to charge the case?
You need a USB-C power source such as a phone charger, laptop port or power bank to recharge the 800mAh case.
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