Side by side comparison and review of RHA T20 Wireless and Sennheiser CX 400BT. 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 | RHA T20 Wireless | Sennheiser CX 400BT |
|---|
| Product Type | Earphones - Bluetooth - wireless - 3.5 mm jack | True wireless earphones - Bluetooth - wireless | |
|---|---|---|---|
| Weight | 49 g | - | |
| Dimensions & Weight Details | - | Earbud: 6 g Charging case: 37 g |
|
| Colour | - | White | Black | |
| Recommended Use | Portable electronics | Portable electronics |
| SOUND QUALITY | RHA T20 Wireless | Sennheiser CX 400BT |
|---|
| Headphones Form Factor | In-ear - neckband | In-ear | |
|---|---|---|---|
| Headphones Technology | Dynamic | Dynamic | |
| Connectivity Technology | Wireless | Wireless | |
| Wireless Technology | Bluetooth | Bluetooth | |
| Bluetooth Version | Bluetooth 5.0 | Bluetooth 5.1 | Sennheiser CX 400BT have a more advanced version of Bluetooth than RHA T20 Wireless. |
| Bluetooth Profiles | - | Hands-Free Profile (HFP), Headset Profile (HSP), Advanced Audio Distribution Profile (A2DP), Audio/Video Remote Control Profile (AVRCP) | |
| Bluetooth Audio Codec | aptX | SBC, AAC, aptX | |
| Noise Isolating | Yes | - | RHA T20 Wireless are equipped with a noise isolating function. |
| Sound Output Mode | Stereo | Stereo | |
| Sound Effects | Bass and Treble Boost | - | |
| Frequency Response | - | 5 - 21000 Hz | |
| Total Harmonic Distortion (THD) | - | 0.08% | |
| Max Sound Pressure | - | 107 dB | |
| Diaphragm | - | 7 mm | |
| Features | Bluetooth aptX technology, DualCoil | - | |
| In-Cord Volume Control | Yes | - |
| MICROPHONE | RHA T20 Wireless | Sennheiser CX 400BT |
|---|
| Form Factor | - | Built-in |
|---|
| REMOTE CONTROL | RHA T20 Wireless | Sennheiser CX 400BT |
|---|
| Controls | Volume control | Volume control, answer/end, play/pause, next/previous track, reject call, pair mode, voice assistant, equaliser preset |
|---|
| CABLE | RHA T20 Wireless | Sennheiser CX 400BT |
|---|
| Cable Type | Headphones cable - detachable USB charge cable - detachable |
USB-C to USB-A cable - detachable - straight - 25 cm |
|---|
| FEATURES | RHA T20 Wireless | Sennheiser CX 400BT |
|---|
| Features | - | Voice alerts, touch control | |
|---|---|---|---|
| Intelligent Assistant | - | Siri, Google Assistant |
| BATTERY AND CHARGING | RHA T20 Wireless | Sennheiser CX 400BT |
|---|
| Battery Type | Headphone battery | Headphone battery rechargeable - Lithium Ion | |
|---|---|---|---|
| Battery Capacity | - | 55 mAh | |
| Battery Life | 12 hour(s) | 7 hour(s) | RHA T20 Wireless 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 |
|
| Charging Time | - | 1.5 hour(s) | |
| Included Qty | - | 2 |
| WIRELESS LINK | RHA T20 Wireless | Sennheiser CX 400BT |
|---|
| Radio Transmitter Power | - | 10 mW |
|---|
| CONNECTIONS | RHA T20 Wireless | Sennheiser CX 400BT |
|---|
| Connector Type | Headphones (mini-phone stereo 3.5 mm) | - |
|---|
| OTHERS | RHA T20 Wireless | Sennheiser CX 400BT |
|---|
| Included Accessories | Carrying case, clothing clip, headphones cable, USB charge cable, 2 pairs of double flange ear tips (small, large), 3 pairs of dual density ear tips (small, medium, large), Comply Foam Comfort Tsx-400 ear tips | 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 - 3 years | - |
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