Sony | Wireless Headphones | WH-CH520 | Wireless | On-Ear | Microphone | Black | Wireless

USB Power Delivery (USB PD): No
USB Type-C charging port: Yes
USB Type-C required charging power (min): 2 W
USB Type-C required charging power (max): 2.5 W
Weight: 147 g
Control unit type: On-ear control unit
LED indicators: Charging, Power
Operating keys: Volume +, Bluetooth pairing, Play/Pause, Track <, Volume -, Track >
Recommended usage: Calls/Music
Headset type: Binaural
Wearing style: Head-band
Market segment: Consumer
Control type: Buttons
Product type: Headset
Product colour: Black
On/off switch: Yes
HD voice: Yes
Works with Apple Siri: Yes
Works with the Google Assistant: Yes
Package width: 44 mm
Package weight: 310 g
Package height: 228 mm
Package depth: 172 mm
Quick start guide: Yes
Quantity: 1
Cables included: USB
Warranty card: Yes
AC adapter included: No
Charging stand: No
Bluetooth profiles: HFP, SBC, A2DP, AVRCP, AAC, HSP
Wireless range: 10 m
Bluetooth: Yes
Connectivity technology: Wireless
USB connector: USB Type-C
Frequency band: 2.4 GHz
Bluetooth version: 5.2
Fast charging: Yes
Battery voltage: 3.7 V
Battery recharge time: 3 h
Talk time: 40 h
Battery technology: Lithium-Ion (Li-Ion)
Continuous audio playback time: 50 h
Charging source: USB
Battery type: Built-in battery
Battery operated: Yes
Battery charge indicator: Yes
Fast charging time: 10 min
Harmonized System (HS) code: 8517620000
Microphone type: Built-in
Warnings: Regularly check the condition of the batteries to prevent leaks., Do not use near sources of heat or flame., Keep away from children.
Acoustic system: Closed
Driver unit: 3 cm
Ear coupling: Supraaural
Battery life: 3000 min