Side by side comparison and review of KEF Mu3 and Poly Voyager 4210-M. Compare design, sound quality and other key specifications and features to simplify the choice of your perfect headphones. Our goal is to make it easier for you to decide on the headphones that will best meet your expectations by revealing the main differences between the products.
| DESIGN AND DIMENSIONS | KEF Mu3 | Poly Voyager 4210-M |
|---|
| Product Type | True wireless earphones - Bluetooth - wireless | Headset - wired - USB-C | |
|---|---|---|---|
| Series | - | Voyager 4200 series | |
| 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 | Silver grey | - | |
| Protection | Splashproof | - | |
| Recommended Use | Portable electronics | - | |
| Bluetooth Range (Operating Distance) | 10 m | - |
| SOUND QUALITY | KEF Mu3 | Poly Voyager 4210-M |
|---|
| Headphones Form Factor | In-ear | - | |
|---|---|---|---|
| Connectivity Technology | Wireless | Wired | |
| Wireless Technology | Bluetooth | - | |
| Bluetooth Version | Bluetooth 5.0 | - | |
| Bluetooth Audio Codec | SBC, AAC | - | |
| Active Noise Cancelling | Yes | - | KEF Mu3 are equipped with active noice cancellation. |
| Sound Output Mode | Stereo | - | |
| Frequency Response | 20 - 20000 Hz | - | |
| Max Input Power | 5 mW | - | |
| Sensitivity | 104 dB/mW | - | |
| Impedance | 16 Ohm | - | |
| Diaphragm | 8.2 mm | - |
| MICROPHONE | KEF Mu3 | Poly Voyager 4210-M |
|---|
| Form Factor | Built-in | - |
|---|
| REMOTE CONTROL | KEF Mu3 | Poly Voyager 4210-M |
|---|
| Controls | Multiple function button | - |
|---|
| BATTERY AND CHARGING | KEF Mu3 | Poly Voyager 4210-M |
|---|
| Battery Type | Headphone battery rechargeable - Lithium Ion | - | |
|---|---|---|---|
| Battery Capacity | 50 mAh | - | |
| Battery Life | 9 hour(s) | - | |
| Battery Life Details | Continuous playback (noise cancelling ON): up to 9 hours Continuous playback (with included charging case): up to 24 hours |
- | |
| Included Qty | 2 | - |
| CONNECTIONS | KEF Mu3 | Poly Voyager 4210-M |
|---|
| Connector Type | - | USB (USB Type-C) |
|---|
| OTHERS | KEF Mu3 | Poly Voyager 4210-M |
|---|
| Included Accessories | 4 pairs of silicone ear tips, USB-C charging cable, charging case (350 mAh) | Charging stand, Bluetooth dongle | |
|---|---|---|---|
| Software Certification | - | Certified for Microsoft Teams | |
| Compliant Standards | IPX5 | - |
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