In depth comparison and review of Sennheiser CX 400BT and Jabra Evolve2 7 UC. 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 | Sennheiser CX 400BT | Jabra Evolve2 7 UC |
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Product Type | True wireless earphones - Bluetooth - wireless | True wireless earphones - Bluetooth - wireless - USB-C via Bluetooth adapter | |
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Dimensions & Weight Details | Earbud: 6 g Charging case: 37 g |
Earbud: 1.9 cm x 1.8 cm x 1.6 cm / 5.4 g Charging case: 7.5 cm x 2.8 cm x 3.8 cm / 52 g |
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Colour | White | Black | Black | |
Body Material | - | Silicone rubber, PC/ABS, gold plated metal, mica-enamelled | |
Earpad Material | - | Silicone | |
Protection | - | Wind protection, IP57 | |
Recommended Use | Portable electronics | Portable electronics, computer | |
Bluetooth Range (Operating Distance) | - | 20 m |
SOUND QUALITY | Sennheiser CX 400BT | Jabra Evolve2 7 UC |
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Headphones Form Factor | In-ear | In-ear | |
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Headphones Technology | Dynamic | - | |
Connectivity Technology | Wireless | Wireless | |
Wireless Technology | Bluetooth | Bluetooth | |
Bluetooth Version | Bluetooth 5.1 | Bluetooth 5.2 | Jabra Evolve2 7 UC have a more advanced version of Bluetooth than Sennheiser CX 400BT. |
Bluetooth Profiles | Hands-Free Profile (HFP), Headset Profile (HSP), Advanced Audio Distribution Profile (A2DP), Audio/Video Remote Control Profile (AVRCP) | Hands-Free Profile (HFP), Headset Profile (HSP), Advanced Audio Distribution Profile (A2DP), Audio/Video Remote Control Profile (AVRCP) | |
Bluetooth Audio Codec | SBC, AAC, aptX | SBC, AAC | |
Active Noise Cancelling | - | Yes | Jabra Evolve2 7 UC are equipped with active noice cancellation. |
Active Noise Cancelling Technology | - | Adjustable noise cancellation | |
Noise Isolating | - | Yes | Jabra Evolve2 7 UC are equipped with a noise isolating function. |
Sound Output Mode | Stereo | Stereo | |
Sound Effects | - | HD Voice | |
Frequency Response | 5 - 21000 Hz | 20 - 20000 Hz | Sennheiser CX 400BT offer a larger frequency range than Jabra Evolve2 7 UC. |
Audio Output Details | - | Communication - 80 - 8000 Multimedia - 20 - 20000 |
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Total Harmonic Distortion (THD) | 0.08% | - | |
Sensitivity | - | 98 dB | |
Impedance | - | 16 Ohm | |
Max Sound Pressure | 107 dB | - | |
Diaphragm | 7 mm | 6 mm | Sennheiser CX 400BT have a thicker diaphragm than Jabra Evolve2 7 UC. |
Simultaneously Connectable Devices Qty (Multipoint) | - | 2 | Jabra Evolve2 7 UC have the ability to connect to multiple devices simultaneously. |
Features | - | Voice guidance, PeakStop technology, Jabra Direct, Jabra Xpress, HearThrough, Jabra MultiSensor Voice, Personalised Sound technology, digital signal processing, Apple MFI |
MICROPHONE | Sennheiser CX 400BT | Jabra Evolve2 7 UC |
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Form Factor | Built-in | Built-in | |
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Noise Cancelling | - | Yes | Jabra Evolve2 7 UC microphone can cancel out ambient noise. |
Frequency Response | - | 80 - 8000 Hz | |
Microphone Features | - | Battery level indicator | |
Microphones Included | - | 6 |
REMOTE CONTROL | Sennheiser CX 400BT | Jabra Evolve2 7 UC |
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Controls | Volume control, answer/end, play/pause, next/previous track, reject call, pair mode, voice assistant, equaliser preset | Mute, on/off, answer/end, reject call, voice control |
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CABLE | Sennheiser CX 400BT | Jabra Evolve2 7 UC |
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Cable Type | USB-C to USB-A cable - detachable - straight - 25 cm | USB-C to USB-A cable - detachable - 30 cm |
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FEATURES | Sennheiser CX 400BT | Jabra Evolve2 7 UC |
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Features | Voice alerts, touch control | Wireless auto pairing, fast charge, stereo/mono mode, active in-ear pressure relief, easy pairing | |
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Internet of Things (IoT) Compatible | - | Yes | |
Intelligent Assistant | Siri, Google Assistant | Alexa | |
Sensors | - | Bone sensor, Voice Pickup Unit (VPU), in-ear detection sensor |
BATTERY AND CHARGING | Sennheiser CX 400BT | Jabra Evolve2 7 UC |
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Battery Type | Headphone battery rechargeable - Lithium Ion | Rechargeable - Lithium Ion - - wireless charging | |
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Battery Capacity | 55 mAh | - | |
Battery Life | 7 hour(s) | 8 hour(s) | Jabra Evolve2 7 UC lasts longer on a single charge than the Sennheiser CX 400BT. |
Battery Life Details | Continuous playback (50% volume): up to 7 hours Continuous playback (with included charging case): up to 20 hours |
Continuous playback (active noise-cancelling on) (with included charging case): up to 33 hours Continuous playback: up to 10 hours Continuous playback (active noise-cancelling on): up to 8 hours |
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Standby Time | - | 292 days | |
Wireless Charging Standards | - | Qi | |
Charging Time | 1.5 hour(s) | 2 hour(s) | Sennheiser CX 400BT recharge faster than Sennheiser CX 400BT. |
Auto On/Off | - | Yes | |
Included Qty | 2 | - |
WIRELESS LINK | Sennheiser CX 400BT | Jabra Evolve2 7 UC |
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Radio Transmitter Power | 10 mW | - |
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OTHERS | Sennheiser CX 400BT | Jabra Evolve2 7 UC |
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Included Accessories | 4 pairs of earpads (extra small, small, medium, large), charging case (420 mAh) | Charging case, 3 pairs of EarGels, wireless charging pad, Jabra Link 380c USB Adapter, USB-A to USB-C adapter | |
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Software Included | - | Jabra Sound+ | |
Compatibility | - | iPhone, Android phone | |
Compliant Standards | Bluetooth Class 1, Directive 2006/66/EC, WEEE 2012/19/EU, Directive 2013/56/EU | Plug and Play, G616 | |
Service & Support | - | Limited warranty - 2 years |