Side by side comparison and review of JVC TINYPHONES HA-KD9BT and Razer Opus. 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 | JVC TINYPHONES HA-KD9BT | Razer Opus |
|---|
| Product Type | Headphones - Bluetooth - wireless | Headphones - Bluetooth - wireless, wired - 3.5 mm jack | |
|---|---|---|---|
| Weight | 120 g | 265 g | JVC TINYPHONES HA-KD9BT are lighter than JVC TINYPHONES HA-KD9BT headphones. |
| Colour | - | Black | |
| Earpad Material | - | Memory foam, nylon, protein-leather, plush | |
| Headband Material | - | Leatherette | |
| Design | Kids | - | |
| Recommended Use | - | Portable electronics |
| SOUND QUALITY | JVC TINYPHONES HA-KD9BT | Razer Opus |
|---|
| Headphones Form Factor | On-ear | Full size | |
|---|---|---|---|
| Headphones Technology | Dynamic | Dynamic | |
| Ear Cups Type | - | Closed | |
| Adjustable Headband | - | Yes | |
| Connectivity Technology | Wireless | Wireless, wired | |
| Wireless Technology | Bluetooth | Bluetooth | |
| Bluetooth Version | Bluetooth 4.2 | Bluetooth 4.2 | 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), Advanced Audio Distribution Profile (A2DP), Audio/Video Remote Control Profile (AVRCP) | |
| Bluetooth Audio Codec | SBC | SBC, aptX | |
| Active Noise Cancelling | - | Yes | Razer Opus are equipped with active noice cancellation. |
| Active Noise Cancelling Technology | - | Advanced ANC | |
| Sound Output Mode | - | Stereo | |
| Frequency Response | 20 - 20000 Hz | 20 - 20000 Hz | Both headphones offer the same frequency response. |
| Sensitivity | 85 dB | 105 dB/mW | Razer Opus have higher sensitivity than JVC TINYPHONES HA-KD9BT. |
| Impedance | 20 Ohm | 12 Ohm | |
| Diaphragm | - | 40 mm | |
| Magnet Material | Ferrite | - | |
| Features | - | Quick Attention function |
| MICROPHONE | JVC TINYPHONES HA-KD9BT | Razer Opus |
|---|
| Form Factor | Built-in | Built-in | |
|---|---|---|---|
| Microphone Operation Mode | - | Omni-directional | |
| Frequency Response | - | 100 - 10000 Hz | |
| Sensitivity | - | -38 dBV/Pascal | |
| Microphones Included | - | 2 |
| REMOTE CONTROL | JVC TINYPHONES HA-KD9BT | Razer Opus |
|---|
| Controls | Volume, power on/off | Power on/off, volume control, multiple function button, ANC/ambient |
|---|
| CABLE | JVC TINYPHONES HA-KD9BT | Razer Opus |
|---|
| Cable Type | USB charge cable - detachable | USB-C cable - detachable - 30 cm Audio cable - detachable - L shaped / mini-phone stereo 3.5 mm - 1.5 m USB-A to USB-C adapter - detachable Airplane connection adapter - detachable |
|
|---|---|---|---|
| Detachable Cable | - | Yes |
| BATTERY AND CHARGING | JVC TINYPHONES HA-KD9BT | Razer Opus |
|---|
| Battery Type | 1 x headphone battery rechargeable | Headphone battery rechargeable | |
|---|---|---|---|
| Battery Life | 12 hour(s) | 25 hour(s) | Razer Opus lasts longer on a single charge than the JVC TINYPHONES HA-KD9BT. |
| Charging Time | 3 hour(s) | - | |
| Included Qty | 1 | - |
| CONNECTIONS | JVC TINYPHONES HA-KD9BT | Razer Opus |
|---|
| Connector Type | Bluetooth USB (power only) (micro-USB) |
Audio input (mini-phone stereo 3.5 mm) USB (24 pin USB-C) |
|---|
| OTHERS | JVC TINYPHONES HA-KD9BT | Razer Opus |
|---|
| Included Accessories | Stickers | Carrying case, USB-C charging cable, 3.5 mm audio cable (1.5 m) | |
|---|---|---|---|
| Compliant Standards | - | THX Certified | |
| Service & Support | - | Limited warranty - 2 years |
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