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Product data
Specifications.
General8
SpecificationBoult Audio K40 Wireless HeadphonesSennheiser 504575 Wireless Headset
- Brand
- Boult Audio K40 Wireless Headphones: Boult Audio
- Sennheiser 504575 Wireless Headset: Sennheiser
- Model
- Boult Audio K40 Wireless Headphones: K40 Wireless Headphones
- Sennheiser 504575 Wireless Headset: 504575 Wireless Headset
- Model Number
- Boult Audio K40 Wireless Headphones: K40
- Sennheiser 504575 Wireless Headset: 504575
- Release date
- Boult Audio K40 Wireless Headphones: 12th December 2023
- Sennheiser 504575 Wireless Headset: 9th December 2015
- Colour
- Boult Audio K40 Wireless Headphones: Black
- Sennheiser 504575 Wireless Headset: Black
- Type
- Boult Audio K40 Wireless Headphones: Headphones
- Sennheiser 504575 Wireless Headset: Headset
- Headphone Type
- Boult Audio K40 Wireless Headphones: In-Ear
- Sennheiser 504575 Wireless Headset: On-Ear
- Connectivity
- Boult Audio K40 Wireless Headphones: Wireless
- Sennheiser 504575 Wireless Headset: Wireless
Product details5
SpecificationBoult Audio K40 Wireless HeadphonesSennheiser 504575 Wireless Headset
- Water Resistant
- Boult Audio K40 Wireless Headphones: IPX5
- Sennheiser 504575 Wireless Headset: —
- Driver Size
- Boult Audio K40 Wireless Headphones: 13 mm
- Sennheiser 504575 Wireless Headset: —
- Driver Type
- Boult Audio K40 Wireless Headphones: Dynamic
- Sennheiser 504575 Wireless Headset: —
- Weight (g)
- Boult Audio K40 Wireless Headphones: 35.90
- Sennheiser 504575 Wireless Headset: —
- Microphone
- Boult Audio K40 Wireless Headphones: —
- Sennheiser 504575 Wireless Headset: Yes
Connectivity features3
SpecificationBoult Audio K40 Wireless HeadphonesSennheiser 504575 Wireless Headset
- Bluetooth
- Boult Audio K40 Wireless Headphones: Yes
- Sennheiser 504575 Wireless Headset: Yes
- Bluetooth Version
- Boult Audio K40 Wireless Headphones: 5.3
- Sennheiser 504575 Wireless Headset: —
- Bluetooth range (Metres)
- Boult Audio K40 Wireless Headphones: 10
- Sennheiser 504575 Wireless Headset: —
Sound features1
SpecificationBoult Audio K40 Wireless HeadphonesSennheiser 504575 Wireless Headset
- Impedance (Ohms)
- Boult Audio K40 Wireless Headphones: 32
- Sennheiser 504575 Wireless Headset: —
Battery features3
SpecificationBoult Audio K40 Wireless HeadphonesSennheiser 504575 Wireless Headset
- Battery Life
- Boult Audio K40 Wireless Headphones: 48 hours
- Sennheiser 504575 Wireless Headset: —
- Charging Port
- Boult Audio K40 Wireless Headphones: USB Type-C
- Sennheiser 504575 Wireless Headset: —
- Charging Time
- Boult Audio K40 Wireless Headphones: 1.4 hours
- Sennheiser 504575 Wireless Headset: —
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