Side by side comparison and review of EPOS I SENNHEISER IMPACT MB 660 UC MS and AKG Y400. 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 | EPOS I SENNHEISER IMPACT MB 660 UC MS | AKG Y400 |
|---|
| Product Type | Headset - Bluetooth - wireless - NFC | Headphones - Bluetooth - wireless | |
|---|---|---|---|
| Weight | 227 g | 170 g | AKG Y400 are lighter than EPOS I SENNHEISER IMPACT MB 660 UC MS headphones. |
| Colour | - | Black | Blue | Rose gold | Green | |
| Recommended Use | Portable electronics, computer | - | |
| Bluetooth Range (Operating Distance) | 25 m | - |
| SOUND QUALITY | EPOS I SENNHEISER IMPACT MB 660 UC MS | AKG Y400 |
|---|
| Headphones Form Factor | Full size | On-ear | |
|---|---|---|---|
| Headphones Technology | Dynamic | - | |
| Ear Cups Type | Closed | - | |
| Foldable | Yes | - | EPOS I SENNHEISER IMPACT MB 660 UC MS can be folded. |
| Connectivity Technology | Wireless | Wireless | |
| Wireless Technology | Bluetooth | Bluetooth | |
| Bluetooth Version | Bluetooth 4.2 | Bluetooth 5.0 | AKG Y400 have a more advanced version of Bluetooth than EPOS I SENNHEISER IMPACT MB 660 UC MS. |
| Bluetooth Profiles | Hands-Free Profile (HFP), Headset Profile (HSP), Advanced Audio Distribution Profile (A2DP), Audio/Video Remote Control Profile (AVRCP), Device ID Profile (DIP) | - | |
| Active Noise Cancelling | Yes | - | EPOS I SENNHEISER IMPACT MB 660 UC MS are equipped with active noice cancellation. |
| Active Noise Cancelling Technology | Adaptive Noise Control | - | |
| Sound Output Mode | Stereo | - | |
| Frequency Response | 17 - 23000 Hz | 20 - 20000 Hz | EPOS I SENNHEISER IMPACT MB 660 UC MS offer a larger frequency range than AKG Y400. |
| Total Harmonic Distortion (THD) | 0.5% | - | |
| Sensitivity | 118 dB | 106 dB/mW | EPOS I SENNHEISER IMPACT MB 660 UC MS have higher sensitivity than AKG Y400. |
| Impedance | 46 Ohm | 32 Ohm |
| MICROPHONE | EPOS I SENNHEISER IMPACT MB 660 UC MS | AKG Y400 |
|---|
| Form Factor | - | Built-in | |
|---|---|---|---|
| Frequency Response | 150 - 6800 Hz | - |
| REMOTE CONTROL | EPOS I SENNHEISER IMPACT MB 660 UC MS | AKG Y400 |
|---|
| Controls | - | Power on/off, volume control |
|---|
| CABLE | EPOS I SENNHEISER IMPACT MB 660 UC MS | AKG Y400 |
|---|
| Cable Type | Audio cable Micro-USB cable |
USB-C charge cable - detachable |
|---|
| BATTERY AND CHARGING | EPOS I SENNHEISER IMPACT MB 660 UC MS | AKG Y400 |
|---|
| Battery Type | Headset battery rechargeable | Headphone battery rechargeable - Lithium Ion | |
|---|---|---|---|
| Battery Life | 30 hours | 20 hour(s) | EPOS I SENNHEISER IMPACT MB 660 UC MS lasts longer on a single charge than the AKG Y400. |
| Battery Life Details | - | Continuous playback: up to 20 hours Continuous talk: up to 20 hours |
|
| Standby Time | 360 hours | - | |
| Charging Time | 3 hours | - | |
| Included Qty | - | 1 |
| WIRELESS LINK | EPOS I SENNHEISER IMPACT MB 660 UC MS | AKG Y400 |
|---|
| Transmission Range | 25 m | - |
|---|
| CONNECTIONS | EPOS I SENNHEISER IMPACT MB 660 UC MS | AKG Y400 |
|---|
| Connector Type | - | USB (power only) (USB Type-C) |
|---|
| OTHERS | EPOS I SENNHEISER IMPACT MB 660 UC MS | AKG Y400 |
|---|
| Included Accessories | Carrying case, Bluetooth adapter, airplane adapter | - | |
|---|---|---|---|
| Service & Support | Limited warranty - 2 years | - |
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