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                                                Denon AH-W150 BT 3.0 7hrs Yellow
                                             | 
                                                Philips SHB4205BK/27 BT 4.1 7hrs Black
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| Acoustic System Name | Closed Back | Closed Back | |
| Battery Life (max) | 7 hours | 7 hours | |
| Battery Technology | - | Lithium Polymer (LiPo) | |
| Bluetooth | Yes | Yes | |
| Bluetooth Profiles | A2DP | A2DP, AVRCP, HFP, HSP | |
| Bluetooth Version | 3.0 | 4.1 | |
| Cables Included | - | USB | |
| Charging Source | - | USB | |
| Colour of Product | Yellow | Black | |
| Connectivity Technology | Wireless | Wireless | |
| Continuous Audio Playback Time | - | 7 hours | |
| Depth | - | 15 mm | |
| Diaphragm Material | - | Polyethylene terephthalate (PET) | |
| Driver Unit Size | 11.5 cm | 12.2 cm | |
| Ear Coupling | In-ear | In-ear | |
| Ear Coupling - In-ear | - | Yes | |
| Ear Hook present | Yes | - | |
| Ear Hook Type - Over-ear | Yes | - | |
| Headphone Frequency | 5 - 25000 Hz | 9 - 21000 Hz | |
| Headphone or Headset | Mobile headset | Mobile headset | |
| Headphone Sensitivity | 106 dB | 105 dB | |
| Headset Type | Dual Ear | Dual Ear | |
| Height | - | 175 mm | |
| Impedance | 16 Ω (Ohms) | 32 Ω (Ohms) | |
| Magnet Type | - | Neodymium | |
| Maximum Input Power | - | 30 Watts | |
| Microphone Number | 2 | 1 | |
| Multi-function Control - Position | On-ear | On cable | |
| Multi-function Control - Type | Digital | Digital | |
| Multi-function Control Present | Yes | Yes | |
| Rechargeable | Yes | Yes | |
| Replaceable Ear Pads | Yes | - | |
| USB Connectivity | Yes | Yes | |
| USB Port - Micro | Yes | Yes | |
| USB Port - Type | Micro | Micro | |
| Volume Control Present | Yes | Yes | |
| Volume Control Type | Button | Digital | |
| Wearing Style | Ear-hook | In-Ear, Neck-band | |
| Weight | 23 g | 38 g | |
| Width | - | 135 mm | |
| Wireless Range | 7.62 m | 10 m | |
| Wireless Type | Bluetooth | Bluetooth | 
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