Samsung Galaxy Buds4 SM-R540 black

Services
Product type: Headphones
Wearing style: in ear
Recommended use: Calls/Music
Market segment: Consumers
Headset type: Binaural
Product color: Black
Volume control: Touch
Control unit type: On-ear control unit
Control: Touch
Virtual Surround: Yes
Virtual surround technology: 360° audio
Adaptive EQ: Yes
Housing material: Metal
Connections and interfaces
Transmission technology: Wireless
Bluetooth: Yes
Bluetooth profiles: SSC, AAC, SBC, LC3
Bluetooth version: 6.1
headphones
Headphone speaker position: In the ear
Driver unit: 1.1 cm
Driver type: Dynamic
Number of drives: 2
Noise cancellation: Yes
Noise cancellation type: Active
microphone
Microphone type: Built-in
Number of microphones: 6
Battery/accumulator
Battery operated: Yes
Battery type: Integrated battery
Continuous audio playback time (with charging case/ANC enabled): 24 hours
Continuous audio playback time (with charging case/ANC off): 30 h
Continuous audio playback time (ANC enabled): 5 h
Continuous audio playback time (ANC off): 6 h
Wireless charging: Yes
Weight and dimensions
Weight of left ear cup: 4.6 g
Weight of right ear cup: 4.6 g
Charging case dimensions (W x D x H): 51 x 51 x 28.3 mm
Charging case weight: 45.1 g
Scope of delivery
Charging case: Yes
Charging case type: Wired & Wireless
Charging case connector type: USB Type-C
AC power adapter: No
Quick Start Overview: Yes
Quantity: 1
energy
USB Type-C charging port: Yes
Required charging power (min.): 2.5 W
Required charging power (max.): 4.5 W