Sony Wh-ch520. Type of product: Headphones. Connection technology: Wireless, Bluetooth. Recommended use: music and calls. Frequency Headphones: 20 - 20000 Hz. Wireless range: 10 m. Weight: 147 g. Product color: Cream

Type of product	Headphones
Weary style	Over the ear
Recommended use	Music and calls
Product color	Cream
Type of headphones	Stereo
Operating buttons	Bluetooth coupling, playback / pause, track <, track>, Volume +, Volume -
Type of control unit	Ear control unit
Type of control	Buttons
LED indicators	Charge, power
ON / OFF switch	Yup
Daisy chain	Yup
Compatible with Google Assistant	Yup
Compatible with Apple Siri	Yup
Connection technology	Wireless
USB connector	USB Type-C
Bluetooth	Yup
Bluetooth profiles	A2DP, AAC, AVRCP, HFP, HSP, SBC
Bluetooth version	5.2
Frequency band	2.4 GHz
Wireless range	10 m
Headphone design	Circumaurale
Acoustic system	Closed
Headphone frequency	20 - 20000 Hz
Driver unit	3 cm
Type of microphone	Built-
Battery operation	Yup
Battery type	Built-in battery
Battery technology	Lithium ions
Continuous audio reproduction	40 h
Talk time	40 h
Battery charge indicator	Yup
Charging time	3 H
Battery voltage	3.7 V
Rapid charging	Yup
Rapid charging	10 min
Charging source	USB
Weight	147 g
Width packaging	44 mm
Packaging depth	172 mm
Packaging height	228 mm
Packal weight	310 g
Charging base	Yup
Quick Guide	Yup
Warranty card	Yup
Cables included	USB
Battery life	40 min