In depth comparison and review of Erato RIO 3 and Sennheiser CX 350BT. 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 | Erato RIO 3 | Sennheiser CX 350BT |
|---|
| Product Type | True wireless earphones - Bluetooth - wireless | Earphones - Bluetooth - wireless | |
|---|---|---|---|
| Height | 4.6 cm | - | |
| Width | 5.1 cm | - | |
| Depth | 3.4 cm | - | |
| Weight | 14 g | 13 g | Sennheiser CX 350BT are lighter than Erato RIO 3 headphones. |
| Colour | Yellow | Black | Turquoise | Green | Red | Silver | Black | White | |
| Protection | Sweat-resistant, IPX5, water-resistant | - | |
| Recommended Use | Portable electronics | Portable electronics | |
| Bluetooth Range (Operating Distance) | 10 m | - |
| SOUND QUALITY | Erato RIO 3 | Sennheiser CX 350BT |
|---|
| Headphones Form Factor | In-ear | In-ear | |
|---|---|---|---|
| Headphones Technology | - | Dynamic | |
| Connectivity Technology | Wireless | Wireless | |
| Wireless Technology | Bluetooth | Bluetooth | |
| Bluetooth Version | Bluetooth 4.2 | Bluetooth 5.0 | Sennheiser CX 350BT have a more advanced version of Bluetooth than Erato RIO 3. |
| 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, apt-X LL | |
| Sound Output Mode | Stereo | Stereo | |
| Frequency Response | 20 - 20000 Hz | 20 - 20000 Hz | Both headphones offer the same frequency response. |
| Total Harmonic Distortion (THD) | - | 0.5% | |
| Sensitivity | 100 dB | - | |
| Impedance | 32 Ohm | - | |
| Max Sound Pressure | - | 110 dB | |
| Diaphragm | 14.2 mm | - |
| MICROPHONE | Erato RIO 3 | Sennheiser CX 350BT |
|---|
| Form Factor | Built-in | - | |
|---|---|---|---|
| Type | - | On-cable | |
| Microphone Operation Mode | Omni-directional | Mono | |
| Audio Input Details | - | Omni-directional | |
| Sensitivity | -38 dB | - |
| REMOTE CONTROL | Erato RIO 3 | Sennheiser CX 350BT |
|---|
| Controls | Volume, power on/off, answer/end, play/pause, next/previous track, pair mode | Answer/end, play/pause, next/previous track |
|---|
| BATTERY AND CHARGING | Erato RIO 3 | Sennheiser CX 350BT |
|---|
| Battery Type | Headphone battery rechargeable | - | |
|---|---|---|---|
| Battery Capacity | 130 mAh | - | |
| Battery Life | 8 hour(s) | 10 hour(s) | Sennheiser CX 350BT lasts longer on a single charge than the Erato RIO 3. |
| Battery Life Details | Continuous playback: up to 6 hours Continuous talk: up to 8 hours |
Continuous playback: up to 10 hours Standby: up to 340 hours |
|
| Included Qty | 2 | - |
| OTHERS | Erato RIO 3 | Sennheiser CX 350BT |
|---|
| Included Accessories | - | 4 pairs of earpads (extra small, small, medium, large) | |
|---|---|---|---|
| Service & Support | - | Limited warranty - 2 years |
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