In depth comparison and review of Philips TAH4205RD and Poly Voyager Focus B825. 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 | Philips TAH4205RD | Poly Voyager Focus B825 |
|---|
| Product Type | Headphones - Bluetooth - wireless | Headset - Bluetooth - wireless - USB-A via Bluetooth adapter | |
|---|---|---|---|
| Height | 18.5 cm | 7 cm | |
| Width | 16.5 cm | 18.3 cm | |
| Depth | 4 cm | 16 cm | |
| Weight | 150 g | 155 g | Philips TAH4205RD are lighter than Philips TAH4205RD headphones. |
| Colour | Red | Black | |
| Recommended Use | Portable electronics | Portable electronics, computer | |
| Bluetooth Range (Operating Distance) | 10 m | 30 m | Poly Voyager Focus B825 have a greater operating distance than Philips TAH4205RD. |
| SOUND QUALITY | Philips TAH4205RD | Poly Voyager Focus B825 |
|---|
| Headphones Form Factor | On-ear | On-ear | |
|---|---|---|---|
| Headphones Technology | Dynamic | - | |
| Ear Cups Type | Closed | - | |
| Foldable | Yes | - | Philips TAH4205RD can be folded. |
| Connectivity Technology | Wireless | Wireless | |
| Wireless Technology | Bluetooth | Bluetooth | |
| Bluetooth Version | Bluetooth 5.0 | Bluetooth 4.1 | Philips TAH4205RD have a more advanced version of Bluetooth than Poly Voyager Focus B825. |
| Bluetooth Profiles | Hands-Free Profile (HFP), Headset Profile (HSP), Advanced Audio Distribution Profile (A2DP), Audio/Video Remote Control Profile (AVRCP) | - | |
| Active Noise Cancelling | - | Yes | Poly Voyager Focus B825 are equipped with active noice cancellation. |
| Active Noise Cancelling Technology | - | SoundGuard DIGITAL | |
| Noise Isolating | Yes | - | Philips TAH4205RD are equipped with a noise isolating function. |
| Sound Output Mode | - | Stereo | |
| Frequency Response | 20 - 20000 Hz | 20 - 20000 Hz | Both headphones offer the same frequency response. |
| Impedance | 32 Ohm | - | |
| Diaphragm | PET - 32 mm | 32 mm | Both headphones are designed with same thick diaphragm. |
| Simultaneously Connectable Devices Qty (Multipoint) | - | 8 | Poly Voyager Focus B825 have the ability to connect to multiple devices simultaneously. |
| Magnet Material | NdFeB | - | |
| Features | - | Smart Sensor Technology |
| MICROPHONE | Philips TAH4205RD | Poly Voyager Focus B825 |
|---|
| Form Factor | Built-in | - | |
|---|---|---|---|
| Type | - | Boom | |
| Microphone Operation Mode | - | MEMS-directional | |
| Frequency Response | - | 100 - 6700 Hz | |
| Microphones Included | - | 3 |
| REMOTE CONTROL | Philips TAH4205RD | Poly Voyager Focus B825 |
|---|
| Controls | Volume control, reject call | Volume, answer/end, microphone on/mute, play/pause |
|---|
| CABLE | Philips TAH4205RD | Poly Voyager Focus B825 |
|---|
| Cable Type | USB-C cable - detachable | Micro-USB charging cable |
|---|
| BATTERY AND CHARGING | Philips TAH4205RD | Poly Voyager Focus B825 |
|---|
| Battery Type | Headphone battery rechargeable - lithium polymer | Headset battery rechargeable | |
|---|---|---|---|
| Battery Capacity | - | 325 mAh | |
| Battery Life | 29 hour(s) | 15 hour(s) | Philips TAH4205RD lasts longer on a single charge than the Poly Voyager Focus B825. |
| Battery Life Details | Standby: up to 166 hours Continuous talk: up to 21 hours Continuous playback: up to 29 hours |
Continuous playback (AAC, active noise-cancelling on): up to 12 hours Continuous talk (active noise-cancelling off): up to 12 hours Continuous talk (active noise-cancelling on): up to 10 hours Continuous playback (active noise-cancelling off): up to 15 hours |
|
| Standby Time | 166 hours | - | |
| Charging Time | - | 2 hour(s) |
| CONNECTIONS | Philips TAH4205RD | Poly Voyager Focus B825 |
|---|
| Connector Type | USB (power only) Bluetooth |
- |
|---|
| OTHERS | Philips TAH4205RD | Poly Voyager Focus B825 |
|---|
| Included Accessories | - | Travel pouch, BT700 Bluetooth USB adapter | |
|---|---|---|---|
| Software Certification | - | Certified for Skype for Business | |
| TAA Compliant | - | Yes | |
| Service & Support | Limited warranty - 1 year | - |
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