Key Feature Comparison
At a Glance
Show differences only
20 kHz
20 Hz
48 Hours
460 mAh (Case), 55 mAh Per Earbud
39 Hours
Wireless
In Ear Canalphone, In the Ear
Wireless
In Ear Canalphone, In the Ear
10 meter
Auto Pairing
10 meter
Auto Pairing
Detailed Specs
Brand
Boult Audio
CMF by Nothing
Model
K40
Buds Pro
Launch Date
23-Feb-24
26-Sep-23
Price
Rs. 899
Rs. 3,499
Price Status
Confirmed
Confirmed
Market Status
Available
Available
Box Contents
Earbud, Charging Case, USB Cable Type C, User Manual, Warranty Card
1 Pair of Earbuds, USB Cable, User Manual, Safety and Warranty Card
Warranty
1 Year
1 Year
Compatible Devices
-
Mobile Phone, PC, Tablet
Type
Wireless
Wireless
Design
In Ear Canalphone
In Ear Canalphone
Fit
In the Ear
In the Ear
Open or Closed Back
Closed Back
Closed Back
Water Resistant
-
Yes, IP54 Rated
Eartip Size
Large, Medium, Small
Large, Medium, Small
Weight
36 gm
Earbud 4.8 grams Charging box 44.5 grams
Dimensions
Overall :45 x 24 x 62 mm
Dimensions Earbud 31.6 x 21.6 x 22.5mm, Charging box 58 x 58 x 24mm
Colours
Berry Red, Denim Blue, Electric Black, Ivory White, Khaki Green
Orange, Dark Grey, Light Grey
Noise Cancellation
Yes
Yes
Replaceable Earbuds
Yes
Yes
Call Control
Answer / End
Answer / End
Music Control
Volume Control
Volume Control
Noise Reduction
-
Anti-wind noise structure
Other Control
-
Touch
Voice Assistant
-
Yes
Connectivity
Bluetooth
Bluetooth
Bluetooth Version
5.3
5.3
Bluetooth Range
10 meter
10 meter
Bluetooth Features
Auto Pairing
Auto Pairing
Microphone
Yes
Yes
Playback Time
48 Hours
39 Hours
Charging Type
USB Type-C
USB
Charging Time
100 Minute
1.5 hours (Case)
Battery Type
Li-ion
Li-ion
Battery Capacity
-
460 mAh (Case), 55 mAh Per Earbud
Max Frequency Response
-
20 kHz
Min Frequency Response
-
20 Hz
Driver Type
-
Dynamic
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