Sennheiser HD 4.50 BTNC BT 4.0 25hrs Black
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Bang & Olufsen Beoplay H9i BT 4.2 Over-ear 24hrs Black
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3.5mm Connector | 1 mm | 1 mm | |
AC Adapter Included | - | Yes | |
Acoustic System Name | Closed Back | Closed Back | |
Battery Life (max) | 25 hours | 24 hours | |
Battery Recharge Time | 2 hours | 2.5 hours | |
Battery Technology | Lithium Polymer (LiPo) | Lithium-Ion (Li-Ion) | |
Battery Type | Built-in battery | Built-in battery | |
Battery Voltage | 3.7 V | - | |
Bluetooth | Yes | Yes | |
Bluetooth Profiles | A2DP, aptX, AVRCP, HFP, HSP, | - | |
Bluetooth Version | 4.0 | 4.2 - AAC | |
Cable Length | 1.4 m | 1.2 m | |
Cables Included | Audio (3.5mm), Micro-USB | Audio (3.5mm), USB Type-C | |
Carrying Case | Yes | Yes | |
Charging Source | USB | - | |
Colour of Product | Black, Silver | Black | |
Connectivity Technology | Wired & Wireless | Wired & Wireless | |
Connector Contacts Plating | Gold | - | |
Depth | - | 5.2 mm | |
Detachable Cable | Yes | Yes | |
Driver Type | Dynamic | - | |
Driver Unit Size | - | 40 cm | |
Ear Coupling | Over-ear | Over-ear | |
Ear Coupling - Over-ear | Yes | Yes | |
Foldable | Yes | - | |
Headphone Frequency | 18 - 22000 Hz | 20 - 20000 Hz | |
Headphone or Headset | Mobile headset | Mobile headset | |
Headphone Sensitivity | 113 dB | 93 dB | |
Headset Type | Dual Ear | Dual-ear | |
Height | - | 20.0 mm | |
Impedance | 18 Ω (Ohms) | 20 Ω (Ohms) | |
LED Indicators | Yes | Yes | |
Microphone Frequency | 100 - 10000 Hz | - | |
Microphone Number | 2 | 4 | |
Multi-function Control - Position | On-ear | - | |
Multi-function Control - Type | Digital | Digital | |
Multi-function Control Present | Yes | Yes | |
NFC / W1 | Yes | - | |
Noise Cancelling | Yes | Yes | |
Noise Reduction | - | Yes | |
Pouch | - | Yes | |
Rechargeable | Yes | Yes | |
Replaceable Ear Pads | - | Yes | |
Storage Pouch | Yes | - | |
USB Connectivity | Yes | Yes | |
USB Port - Micro | Yes | - | |
USB Port - Type | Micro | C | |
USB Port - Type C | - | Yes | |
Volume Control Present | Yes | Yes | |
Volume Control Type | Digital | Touch | |
Wearing Style | Head-band | Head-band | |
Weight | 238 g | 295 g | |
Width | - | 19.5 mm | |
Wireless Range | 10 m | - | |
Wireless Type | Bluetooth | Bluetooth |
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