In depth comparison and review of EPOS I SENNHEISER IMPACT MB 660 UC and JBL LIVE 400BT. 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 | EPOS I SENNHEISER IMPACT MB 660 UC | JBL LIVE 400BT |
|---|
| Product Type | Headset - Bluetooth - wireless - NFC - USB, 3.5 mm jack | Headphones - Bluetooth - wireless | |
|---|---|---|---|
| Weight | 227 g | 185.8 g | JBL LIVE 400BT are lighter than EPOS I SENNHEISER IMPACT MB 660 UC headphones. |
| Colour | - | Red | White | Blue | Black | |
| Earpad Material | - | Polyurethane leather | |
| Headband Material | - | Fabric | |
| Recommended Use | Portable electronics, computer | Portable electronics | |
| Bluetooth Range (Operating Distance) | 25 m | - |
| SOUND QUALITY | EPOS I SENNHEISER IMPACT MB 660 UC | JBL LIVE 400BT |
|---|
| Headphones Form Factor | Full size | On-ear | |
|---|---|---|---|
| Headphones Technology | Dynamic | - | |
| Ear Cups Type | Closed | - | |
| Foldable | Yes | Yes | Both headphones can be folded. |
| Connectivity Technology | Wireless | Wireless | |
| Wireless Technology | Bluetooth | Bluetooth | |
| Bluetooth Version | Bluetooth 4.2 | Bluetooth 4.2 | Both headphones have the same Bluetooth version. |
| Bluetooth Profiles | Hands-Free Profile (HFP), Headset Profile (HSP), Advanced Audio Distribution Profile (A2DP), Audio/Video Remote Control Profile (AVRCP), Device ID Profile (DIP) | Hands-Free Profile (HFP), Headset Profile (HSP), Advanced Audio Distribution Profile (A2DP), Audio/Video Remote Control Profile (AVRCP) | |
| Bluetooth Audio Codec | SBC, aptX | - | |
| Active Noise Cancelling | Yes | - | EPOS I SENNHEISER IMPACT MB 660 UC are equipped with active noice cancellation. |
| Active Noise Cancelling Technology | NoiseGard active noise compensation | - | |
| Sound Output Mode | Stereo | Stereo | |
| Sound Effects | - | Signature Sound | |
| Frequency Response | 17 - 23000 Hz | 20 - 20000 Hz | EPOS I SENNHEISER IMPACT MB 660 UC offer a larger frequency range than JBL LIVE 400BT. |
| Max Input Power | - | 15 mW | |
| Total Harmonic Distortion (THD) | <0.5% | - | |
| Sensitivity | 118 dB | 106 dB | EPOS I SENNHEISER IMPACT MB 660 UC have higher sensitivity than JBL LIVE 400BT. |
| Impedance | 46 Ohm | 32 Ohm | |
| Diaphragm | - | 40 mm | |
| Features | - | TalkThru technology, Ambient Aware |
| MICROPHONE | EPOS I SENNHEISER IMPACT MB 660 UC | JBL LIVE 400BT |
|---|
| Form Factor | Built-in | Built-in | |
|---|---|---|---|
| Frequency Response | 150 - 6800 Hz | - | |
| Microphones Included | 3 | - |
| REMOTE CONTROL | EPOS I SENNHEISER IMPACT MB 660 UC | JBL LIVE 400BT |
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| Controls | - | Volume, power on/off, answer/end, play/pause, next/previous track, pair mode, voice assistant |
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| CABLE | EPOS I SENNHEISER IMPACT MB 660 UC | JBL LIVE 400BT |
|---|
| Cable Type | Audio cable Micro-USB cable |
Headphones cable - detachable - with remote control and mic - 1.334 m | |
|---|---|---|---|
| Cable Length | - | 1.334 m | |
| Detachable Cable | - | Yes |
| FEATURES | EPOS I SENNHEISER IMPACT MB 660 UC | JBL LIVE 400BT |
|---|
| Intelligent Assistant | - | Siri, Google Now, Google Assistant, Alexa |
|---|
| BATTERY AND CHARGING | EPOS I SENNHEISER IMPACT MB 660 UC | JBL LIVE 400BT |
|---|
| Battery Type | Headset battery rechargeable - lithium polymer | Headphone battery rechargeable - lithium polymer | |
|---|---|---|---|
| Battery Capacity | 700 mAh | 700 mAh | Both headphones are designed with the same battery capacity. |
| Battery Life | 30 hours | 24 hour(s) | EPOS I SENNHEISER IMPACT MB 660 UC lasts longer on a single charge than the JBL LIVE 400BT. |
| Battery Life Details | - | Continuous playback: up to 24 hours Continuous talk: up to 24 hours |
|
| Standby Time | 360 hours | - | |
| Charging Time | 3 hours | 2 hour(s) | JBL LIVE 400BT recharge faster than EPOS I SENNHEISER IMPACT MB 660 UC. |
| WIRELESS LINK | EPOS I SENNHEISER IMPACT MB 660 UC | JBL LIVE 400BT |
|---|
| Transmission Range | 25 m | - |
|---|
| OTHERS | EPOS I SENNHEISER IMPACT MB 660 UC | JBL LIVE 400BT |
|---|
| Included Accessories | Carrying case, Bluetooth adapter, airplane adapter | Charging cable | |
|---|---|---|---|
| Service & Support | Limited warranty - 2 years | Limited warranty - 1 year |
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