In depth comparison and review of JBL Under Armour True Wireless Flash and KEF Mu3. Compare design, audio features, functions and other important specifications to easily choose the right headphones for you. Our goal is to help you uncover differences between the products and find the headphones that will best fit your needs.
| DESIGN AND DIMENSIONS | JBL Under Armour True Wireless Flash | KEF Mu3 |
|---|
| Product Type | True wireless earphones - Bluetooth - wireless | True wireless earphones - Bluetooth - wireless | |
|---|---|---|---|
| Weight | 16 g | - | |
| 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 |
|
| Colour | Black | Silver grey | |
| Protection | Waterproof, sweat-resistant, IPX7 | Splashproof | |
| Design | Sports | - | |
| Recommended Use | Portable electronics | Portable electronics | |
| Bluetooth Range (Operating Distance) | - | 10 m |
| SOUND QUALITY | JBL Under Armour True Wireless Flash | KEF Mu3 |
|---|
| Headphones Form Factor | In-ear | In-ear | |
|---|---|---|---|
| Connectivity Technology | Wireless | Wireless | |
| Wireless Technology | Bluetooth | Bluetooth | |
| Bluetooth Version | Bluetooth 4.2 | Bluetooth 5.0 | KEF Mu3 have a more advanced version of Bluetooth than JBL Under Armour True Wireless Flash. |
| 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 | KEF Mu3 are equipped with active noice cancellation. |
| Sound Output Mode | Stereo | Stereo | |
| Frequency Response | 20 - 22000 Hz | 20 - 20000 Hz | JBL Under Armour True Wireless Flash offer a larger frequency range than KEF Mu3. |
| Max Input Power | - | 5 mW | |
| Sensitivity | 95 dB | 104 dB/mW | KEF Mu3 have higher sensitivity than JBL Under Armour True Wireless Flash. |
| Impedance | 14 Ohm | 16 Ohm | |
| Max Sound Pressure | 113 dB | - | |
| Diaphragm | 5.8 mm | 8.2 mm | KEF Mu3 have a thicker diaphragm than JBL Under Armour True Wireless Flash. |
| Features | TalkThru technology, JBL Charged Sound, Ambient Aware | - |
| MICROPHONE | JBL Under Armour True Wireless Flash | KEF Mu3 |
|---|
| Form Factor | Built-in | Built-in | |
|---|---|---|---|
| Sensitivity | -25 dBV/Pascal | - |
| REMOTE CONTROL | JBL Under Armour True Wireless Flash | KEF Mu3 |
|---|
| Controls | Power on/off, answer/end, microphone on/mute, play/pause, next/previous track, reject call, voice assistant, TalkThru button | Multiple function button |
|---|
| FEATURES | JBL Under Armour True Wireless Flash | KEF Mu3 |
|---|
| Features | True wireless | - | |
|---|---|---|---|
| Intelligent Assistant | Siri, Google Now | - |
| BATTERY AND CHARGING | JBL Under Armour True Wireless Flash | KEF Mu3 |
|---|
| Battery Type | 2 x headphone battery rechargeable - lithium polymer | Headphone battery rechargeable - Lithium Ion | |
|---|---|---|---|
| Battery Capacity | 85 mAh | 50 mAh | JBL Under Armour True Wireless Flash have a higher battery capacity than KEF Mu3. |
| Battery Life | 5 hour(s) | 9 hour(s) | KEF Mu3 lasts longer on a single charge than the JBL Under Armour True Wireless Flash. |
| Battery Life Details | - | Continuous playback (noise cancelling ON): up to 9 hours Continuous playback (with included charging case): up to 24 hours |
|
| Charging Time | 2 hour(s) | - | |
| Included Qty | 2 | 2 |
| OTHERS | JBL Under Armour True Wireless Flash | KEF Mu3 |
|---|
| Included Accessories | 3 pairs of ear tips (small, medium, large), micro-USB charging cable, 3 pairs of wing tips (small, medium, large), charging case (1500 mAh) | 4 pairs of silicone ear tips, USB-C charging cable, charging case (350 mAh) | |
|---|---|---|---|
| Software Included | MapMyRun premium membership (12 months) | - | |
| Compliant Standards | IPX7 | IPX5 | |
| Service & Support | Limited warranty - 1 year | - |
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