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Philips SHB3175BK/27 BT 4.1 12hrs Black
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Bang & Olufsen Beoplay H9i BT 4.2 24hrs Brown/Grey
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Technical Specifications
| 3.5mm Connector | - | 1 mm | |
| AC Adapter Included | - | Yes | |
| Acoustic System Name | Closed Back | Closed Back | |
| Battery Life (max) | 12 hours | 14 hours | |
| Battery Recharge Time | - | 2.5 hours | |
| Battery Technology | Lithium Polymer (LiPo) | Lithium-Ion (Li-Ion) | |
| Battery Type | - | Built-in battery | |
| Bluetooth | Yes | Yes | |
| Bluetooth Profiles | A2DP, AVRCP, HFP, HSP | A2DP,AVRCP,HFP,HSP | |
| Bluetooth Version | 4.1 | 4.2 | |
| Cable Length | - | 1.2 m | |
| Cables Included | USB | Audio (3.5mm),Micro-USB | |
| Carrying Case | - | Yes | |
| Charging Source | USB | - | |
| Colour of Product | Black | Brown, Grey | |
| Connectivity Technology | Wireless | Wired & Wireless | |
| Continuous Audio Playback Time | 12 hours | - | |
| Depth | 46 mm | 22.5 mm | |
| Driver Unit Size | 40 cm | 40 cm | |
| Ear Coupling | Over-ear | Over-ear | |
| Ear Coupling - Over-ear | Yes | Yes | |
| Foldable | Yes | - | |
| Headphone Frequency | 8 - 21500 Hz | 20 - 22000 Hz | |
| Headphone or Headset | Mobile headset | Mobile headset | |
| Headphone Sensitivity | 104 dB | - | |
| Headset Type | Dual Ear | Dual-ear | |
| Height | 185 mm | 40 mm | |
| Impedance | 32 Ω (Ohms) | 20 Ω (Ohms) | |
| LED Indicators | - | Yes | |
| Magnet Type | Neodymium | - | |
| Maximum Input Power | 40 Watts | - | |
| Microphone Number | 1 | 1 | |
| Multi-function Control - Position | On-ear | - | |
| Multi-function Control - Type | Digital | Analogue | |
| Multi-function Control Present | Yes | Yes | |
| Noise Cancelling | - | Yes | |
| Pouch | - | Yes | |
| Rechargeable | Yes | Yes | |
| USB Connectivity | Yes | Yes | |
| USB Port - Micro | Yes | - | |
| USB Port - Type | Micro | A | |
| USB Port - Type A | - | Yes | |
| Volume Control Present | Yes | Yes | |
| Volume Control Type | Digital | 1 | |
| Wearing Style | Head-band | Head-band | |
| Weight | 190 g | 295 g | |
| Width | 190 mm | 19.7 mm | |
| Wireless Range | 10 m | - | |
| Wireless Type | Bluetooth | Bluetooth |
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