In depth comparison and review of RHA MA390 Wireless 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 | RHA MA390 Wireless | Sennheiser CX 400BT |
|---|
| Product Type | Earphones - Bluetooth - wireless | True wireless earphones - Bluetooth - wireless | |
|---|---|---|---|
| Weight | 24 g | - | |
| Dimensions & Weight Details | - | Earbud: 6 g Charging case: 37 g |
|
| Colour | - | White | Black | |
| Protection | Sweat-resistant, water-resistant | - | |
| Recommended Use | - | Portable electronics |
| SOUND QUALITY | RHA MA390 Wireless | Sennheiser CX 400BT |
|---|
| Headphones Form Factor | In-ear | In-ear | |
|---|---|---|---|
| Headphones Technology | Dynamic | Dynamic | |
| Connectivity Technology | Wireless | Wireless | |
| Wireless Technology | Bluetooth | Bluetooth | |
| Bluetooth Version | Bluetooth 4.1 | Bluetooth 5.1 | Sennheiser CX 400BT have a more advanced version of Bluetooth than RHA MA390 Wireless. |
| 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 | |
| Noise Isolating | Yes | - | RHA MA390 Wireless are equipped with a noise isolating function. |
| Sound Output Mode | Stereo | Stereo | |
| Frequency Response | 16 - 22000 Hz | 5 - 21000 Hz | RHA MA390 Wireless offer a larger frequency range than Sennheiser CX 400BT. |
| Total Harmonic Distortion (THD) | - | 0.08% | |
| Max Sound Pressure | - | 107 dB | |
| Diaphragm | - | 7 mm | |
| Features | Bluetooth aptX technology | - |
| MICROPHONE | RHA MA390 Wireless | Sennheiser CX 400BT |
|---|
| Form Factor | - | Built-in |
|---|
| REMOTE CONTROL | RHA MA390 Wireless | Sennheiser CX 400BT |
|---|
| Controls | 3-button remote | Volume control, answer/end, play/pause, next/previous track, reject call, pair mode, voice assistant, equaliser preset |
|---|
| CABLE | RHA MA390 Wireless | Sennheiser CX 400BT |
|---|
| Cable Type | - | USB-C to USB-A cable - detachable - straight - 25 cm |
|---|
| FEATURES | RHA MA390 Wireless | Sennheiser CX 400BT |
|---|
| Features | - | Voice alerts, touch control | |
|---|---|---|---|
| Intelligent Assistant | - | Siri, Google Assistant |
| BATTERY AND CHARGING | RHA MA390 Wireless | Sennheiser CX 400BT |
|---|
| Battery Type | Headphone battery rechargeable | Headphone battery rechargeable - Lithium Ion | |
|---|---|---|---|
| Battery Capacity | - | 55 mAh | |
| Battery Life | 8 hour(s) | 7 hour(s) | RHA MA390 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 |
|
| Standby Time | 720 hours | - | |
| Charging Time | - | 1.5 hour(s) | |
| Included Qty | - | 2 |
| WIRELESS LINK | RHA MA390 Wireless | Sennheiser CX 400BT |
|---|
| Radio Transmitter Power | - | 10 mW |
|---|
| OTHERS | RHA MA390 Wireless | Sennheiser CX 400BT |
|---|
| Included Accessories | Carrying pouch, USB charging cable, 3 pairs of ear tips (small, medium, large) | 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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