Side by side comparison and review of Audio-Technica ATH CKR55BT and Erato Apollo 7S. 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 | Audio-Technica ATH CKR55BT | Erato Apollo 7S |
|---|
| Product Type | Earphones - Bluetooth - wireless | True wireless earphones - Bluetooth - wireless | |
|---|---|---|---|
| Width | - | 1.54 cm | |
| Depth | - | 2.22 cm | |
| Weight | 17 g | 4 g | Erato Apollo 7S are lighter than Audio-Technica ATH CKR55BT headphones. |
| Dimensions & Weight Details | - | Charging case: 6.25 cm x 4 cm x 2.55 cm / 52 g | |
| Colour | Steel black | Black | Space grey | Rose gold | Silver | |
| Protection | - | Weatherproof, sweat-resistant, IPX5 | |
| Recommended Use | - | Portable electronics | |
| Bluetooth Range (Operating Distance) | 10 m | 10 m | The maximum operating distance of both headphones is the same. |
| SOUND QUALITY | Audio-Technica ATH CKR55BT | Erato Apollo 7S |
|---|
| Headphones Form Factor | In-ear | In-ear | |
|---|---|---|---|
| Headphones Technology | Dynamic | - | |
| Connectivity Technology | Wireless | Wireless | |
| Wireless Technology | Bluetooth | Bluetooth | |
| Bluetooth Version | Bluetooth 4.1 | Bluetooth 4.1 | Both headphones have the same Bluetooth version. |
| 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) | |
| Sound Output Mode | Stereo | Stereo | |
| Sound Effects | - | 3D Surround Sound | |
| Frequency Response | 20 - 20000 Hz | 20 - 20000 Hz | Both headphones offer the same frequency response. |
| Sensitivity | 103 dB/mW | 100 dB | Audio-Technica ATH CKR55BT have higher sensitivity than Erato Apollo 7S. |
| Impedance | 16 Ohm | 16 Ohm | |
| Diaphragm | 10.7 mm | 5.8 mm | Audio-Technica ATH CKR55BT have a thicker diaphragm than Erato Apollo 7S. |
| Features | - | Bluetooth aptX technology |
| MICROPHONE | Audio-Technica ATH CKR55BT | Erato Apollo 7S |
|---|
| Form Factor | - | Built-in | |
|---|---|---|---|
| Type | On-cable | - | |
| Microphone Technology | Electret condenser | - | |
| Microphone Operation Mode | Omni-directional | Omni-directional | |
| Frequency Response | 100 - 10000 Hz | - | |
| Audio Input Details | Omni-directional - 100 - 10000 Hz | - | |
| Sensitivity | -44 dB | -42 dB |
| REMOTE CONTROL | Audio-Technica ATH CKR55BT | Erato Apollo 7S |
|---|
| Controls | - | Volume, answer/end, play/pause, next/previous track |
|---|
| CABLE | Audio-Technica ATH CKR55BT | Erato Apollo 7S |
|---|
| Cable Type | Micro-USB charge cable - detachable - 30 cm | USB charge cable |
|---|
| BATTERY AND CHARGING | Audio-Technica ATH CKR55BT | Erato Apollo 7S |
|---|
| Battery Type | 1 x headphone battery rechargeable - lithium polymer | Headphone battery rechargeable | |
|---|---|---|---|
| Battery Life | 7 hour(s) | 4 hours | Audio-Technica ATH CKR55BT lasts longer on a single charge than the Erato Apollo 7S. |
| Battery Life Details | - | Continuous talk: up to 4 hours Continuous playback: up to 3 hours |
|
| Standby Time | 200 hours | - | |
| Charging Time | 3 hour(s) | - | |
| Included Qty | 1 | - |
| WIRELESS LINK | Audio-Technica ATH CKR55BT | Erato Apollo 7S |
|---|
| Modulation Type | FHSS | - | |
|---|---|---|---|
| Radio Frequency Range | 2.402 - 2.480GHz | - |
| OTHERS | Audio-Technica ATH CKR55BT | Erato Apollo 7S |
|---|
| Included Accessories | Clip, pouch case, 4 pairs of ear tips (XS, S,M, L) | 3 pairs of Comply foam ear tips, charging case, 3 pairs of ear stabilisers (small, medium, large) |
|---|
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