Sennheiser HD 4.50 BTNC BT 4.0 25hrs Black
Bang & Olufsen Beoplay H9i BT 4.2 Over-ear 24hrs Black
Match RatingMatch RatingMatch Rating
Wired
Wireless
Wired + Wireless Combo
Android (headphone port)
Apple iOS (headphone port)
PC or Mac
Use With Headphone Amp
MP3 Player
Musical Instrument
Commuting
Taking Flights
Train Journeys
PS4 Compatible
PS Vita Compatible
Audio Books
Music
Video Content (Netflix, YouTube, TV)
Radio
Gaming
Podcasts
Over-Ear
Making Phone Calls

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Technical Specifications

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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