In depth comparison and review of ifrogz Impulse and Sennheiser CX 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 | ifrogz Impulse | Sennheiser CX 400BT |
|---|
| Product Type | Earphones - Bluetooth - wireless | True wireless earphones - Bluetooth - wireless | |
|---|---|---|---|
| Dimensions & Weight Details | - | Earbud: 6 g Charging case: 37 g |
|
| Colour | White & rose gold | Black & silver | White | Black | |
| Protection | Sweat-resistant | - | |
| Design | Sports | - | |
| Recommended Use | Portable electronics, phone | Portable electronics | |
| Bluetooth Range (Operating Distance) | 9.1 m | - |
| SOUND QUALITY | ifrogz Impulse | Sennheiser CX 400BT |
|---|
| Headphones Form Factor | In-ear | In-ear | |
|---|---|---|---|
| Headphones Technology | - | Dynamic | |
| Connectivity Technology | Wireless | Wireless | |
| Wireless Technology | Bluetooth | Bluetooth | |
| Bluetooth Version | - | Bluetooth 5.1 | |
| Bluetooth Profiles | - | Hands-Free Profile (HFP), Headset Profile (HSP), Advanced Audio Distribution Profile (A2DP), Audio/Video Remote Control Profile (AVRCP) | |
| Bluetooth Audio Codec | - | SBC, AAC, aptX | |
| Sound Output Mode | Stereo | Stereo | |
| Frequency Response | 20 - 20000 Hz | 5 - 21000 Hz | Sennheiser CX 400BT offer a larger frequency range than ifrogz Impulse. |
| Total Harmonic Distortion (THD) | - | 0.08% | |
| Sensitivity | 97 dB | - | |
| Impedance | 16 Ohm | - | |
| Max Sound Pressure | - | 107 dB | |
| Diaphragm | 11 mm | 7 mm | ifrogz Impulse have a thicker diaphragm than Sennheiser CX 400BT. |
| MICROPHONE | ifrogz Impulse | Sennheiser CX 400BT |
|---|
| Form Factor | - | Built-in |
|---|
| REMOTE CONTROL | ifrogz Impulse | Sennheiser CX 400BT |
|---|
| Controls | Power on/off, volume control, answer/end, play/pause, next/previous track | Volume control, answer/end, play/pause, next/previous track, reject call, pair mode, voice assistant, equaliser preset |
|---|
| CABLE | ifrogz Impulse | Sennheiser CX 400BT |
|---|
| Cable Type | Micro-USB charge cable - detachable | USB-C to USB-A cable - detachable - straight - 25 cm |
|---|
| FEATURES | ifrogz Impulse | Sennheiser CX 400BT |
|---|
| Features | - | Voice alerts, touch control | |
|---|---|---|---|
| Intelligent Assistant | - | Siri, Google Assistant |
| BATTERY AND CHARGING | ifrogz Impulse | Sennheiser CX 400BT |
|---|
| Battery Type | Headphone battery rechargeable | Headphone battery rechargeable - Lithium Ion | |
|---|---|---|---|
| Battery Capacity | - | 55 mAh | |
| Battery Life | 5 hour(s) | 7 hour(s) | Sennheiser CX 400BT lasts longer on a single charge than the ifrogz Impulse. |
| Battery Life Details | - | Continuous playback (50% volume): up to 7 hours Continuous playback (with included charging case): up to 20 hours |
|
| Charging Time | 1 hour(s) | 1.5 hour(s) | ifrogz Impulse recharge faster than ifrogz Impulse. |
| Included Qty | - | 2 |
| WIRELESS LINK | ifrogz Impulse | Sennheiser CX 400BT |
|---|
| Transmission Range | 9.1 m | - | |
|---|---|---|---|
| Radio Transmitter Power | - | 10 mW |
| CONNECTIONS | ifrogz Impulse | Sennheiser CX 400BT |
|---|
| Connector Type | USB (5 pin Micro-USB Type B (power only)) | - |
|---|
| OTHERS | ifrogz Impulse | Sennheiser CX 400BT |
|---|
| Included Accessories | - | 4 pairs of earpads (extra small, small, medium, large), charging case (420 mAh) | |
|---|---|---|---|
| Compliant Standards | - | Bluetooth Class 1, Directive 2006/66/EC, WEEE 2012/19/EU, Directive 2013/56/EU | |
| Service & Support | Limited warranty - lifetime | - |
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