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Razer Hammerhead BT BT 4,1 8hrs Green
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Philips SHQ7800BK/27 BT 4.1 6hrs Sweatproof Black
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Technical Specifications
| Acoustic System Name | Closed Back | Open Back | |
| Battery Charge Indicator | 1 24345 | - | |
| Battery Life (max) | 8 hours | 6 hours | |
| Battery Recharge Time | 2 hours | - | |
| Battery Technology | Lithium Polymer (LiPo) | Lithium Polymer (LiPo) | |
| Battery Type | Built-in battery | - | |
| Belt Clip | 1 | - | |
| Bluetooth | Yes | Yes | |
| Bluetooth Profiles | aptX | A2DP, AVRCP, HFP, HSP | |
| Bluetooth Version | 4.1 | 4.1 | |
| Cables Included | USB | USB | |
| Carrying Case | Yes | - | |
| Charging Source | USB | USB | |
| Colour of Product | Black, Green | Black | |
| Connectivity Technology | Wireless | Wireless | |
| Connector Contacts Plating | Gold | - | |
| Continuous Audio Playback Time | - | 5.5 hours | |
| Depth | - | 40 mm | |
| Diaphragm Material | - | Polyethylene terephthalate (PET) | |
| Driver Type | - | Dynamic | |
| Driver Unit Size | 10 cm | 13.6 cm | |
| Ear Coupling | In-ear | In-ear | |
| Ear Coupling - In-ear | Yes | Yes | |
| Ear Hook present | - | Yes | |
| Ear Hook Type - Fin | - | Yes | |
| Ear Hook Type - Over-ear | - | Yes | |
| Extra Earbuds | Yes | - | |
| Headphone Frequency | 20 - 20000 Hz | 8 - 22000 Hz | |
| Headphone or Headset | Mobile headset | Mobile headset | |
| Headphone Sensitivity | 116 dB | 107 dB | |
| Headset Type | Dual Ear | Dual Ear | |
| Height | - | 20 mm | |
| Impedance | 32 Ω (Ohms) | 32 Ω (Ohms) | |
| International Protection Code | - | IPX2 | |
| Magnet Type | Neodymium | Neodymium | |
| Maximum Input Power | 10 Watts | 10 Watts | |
| Microphone Frequency | 300 - 3400 Hz | - | |
| Microphone Number | 1 | 1 | |
| Microphone Sensitivity | 42 dB | - | |
| Multi-function Control - Position | On cable | On cable | |
| Multi-function Control - Type | Digital | Digital | |
| Multi-function Control Present | Yes | Yes | |
| Noise Reduction | - | Yes | |
| Number of Batteries Supported | 1 | - | |
| Protection Features | - | Moisture resistance, Sweat resistance | |
| Rechargeable | Yes | Yes | |
| Replaceable Ear Pads | Yes | Yes | |
| USB Connectivity | Yes | Yes | |
| USB Port - Micro | Yes | Yes | |
| USB Port - Type | Micro | Micro | |
| Voice Coil Type | - | Copper | |
| Volume Control Present | Yes | Yes | |
| Volume Control Type | Digital | Digital | |
| Wearing Style | In-ear | Ear-hook, In-ear | |
| Weight | 28 g | 23.25 g | |
| Width | - | 100 mm | |
| Wireless Range | 10 m | 10 m | |
| Wireless Type | Bluetooth | Bluetooth |
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