Detailed comparison and review of KEF Mu3 and JBL TUNE Flex. With our comprehensive overview, you can simply compare design, sound quality, but also other key features of both headphones and easily decide which ones are the right choice for you. Our goal is to help you identify the main differences between products and find the headphones that best fit your needs and expectations.
DESIGN AND DIMENSIONS | KEF Mu3 | JBL TUNE Flex |
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Product Type | True wireless earphones - Bluetooth - wireless | True wireless earphones - Bluetooth - wireless | |
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Dimensions & Weight Details | Earbud: 1.75 cm x 2.63 cm x 2.45 cm / 5.8 g Charging case: 6.2 cm x 5.2 cm x 3.35 cm / 46.8 g |
Charging case: 5.15 cm x 2.93 cm x 4.7 cm / 38.6 g Earbud: 2.05 cm x 2.02 cm x 3.49 cm / 4.8 g |
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Colour | Silver grey | Blue | White | Black | Purple | |
Protection | Splashproof | - | |
Recommended Use | Portable electronics | Portable electronics | |
Bluetooth Range (Operating Distance) | 10 m | - |
SOUND QUALITY | KEF Mu3 | JBL TUNE Flex |
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Headphones Form Factor | In-ear | Ear-bud | |
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Headphones Technology | - | Dynamic | |
Connectivity Technology | Wireless | Wireless | |
Wireless Technology | Bluetooth | Bluetooth | |
Bluetooth Version | Bluetooth 5.0 | Bluetooth 5.2 | JBL TUNE Flex have a more advanced version of Bluetooth than KEF Mu3. |
Bluetooth Profiles | - | Hands-Free Profile (HFP), Advanced Audio Distribution Profile (A2DP), Audio/Video Remote Control Profile (AVRCP) | |
Bluetooth Audio Codec | SBC, AAC | - | |
Active Noise Cancelling | Yes | Yes | Both headphones are equipped with active noice cancellation. |
Active Noise Cancelling Technology | - | Smart Ambient | |
Sound Output Mode | Stereo | Stereo | |
Sound Effects | - | Pure Bass | |
Frequency Response | 20 - 20000 Hz | 20 - 20000 Hz | Both headphones offer the same frequency response. |
Max Input Power | 5 mW | - | |
Sensitivity | 104 dB/mW | 110 dB | JBL TUNE Flex have higher sensitivity than KEF Mu3. |
Impedance | 16 Ohm | 32 Ohm | |
Diaphragm | 8.2 mm | 12 mm | JBL TUNE Flex have a thicker diaphragm than KEF Mu3. |
MICROPHONE | KEF Mu3 | JBL TUNE Flex |
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Form Factor | Built-in | Built-in | |
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Sensitivity | - | -38 dBV/Pascal |
REMOTE CONTROL | KEF Mu3 | JBL TUNE Flex |
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Controls | Multiple function button | - |
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CABLE | KEF Mu3 | JBL TUNE Flex |
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Cable Type | - | USB-C charge cable |
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BATTERY AND CHARGING | KEF Mu3 | JBL TUNE Flex |
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Battery Type | Headphone battery rechargeable - Lithium Ion | 2 x headphone battery rechargeable - lithium polymer | |
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Battery Capacity | 50 mAh | 55 mAh | JBL TUNE Flex have a higher battery capacity than KEF Mu3. |
Battery Life | 9 hour(s) | 4.5 hours | KEF Mu3 lasts longer on a single charge than the JBL TUNE Flex. |
Battery Life Details | Continuous playback (noise cancelling ON): up to 9 hours Continuous playback (with included charging case): up to 24 hours |
Continuous playback: up to 32 hours Continuous playback: up to 4.5 hours Continuous playback (ANC OFF / Bluetooth): up to 8 hours Continuous playback (ANC ON / Bluetooth): up to 6 hours Continuous playback (with included charging case): up to 18 hours |
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Charging Time | - | 2 hour(s) | |
Included Qty | 2 | 2 |
OTHERS | KEF Mu3 | JBL TUNE Flex |
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Included Accessories | 4 pairs of silicone ear tips, USB-C charging cable, charging case (350 mAh) | USB-C charging cable, 3 sizes of earhooks, charging case (570 mAh) | |
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Compliant Standards | IPX5 | IPX4, GFSK, π/4 QPSK, 8DPSK |