Energy Sistem Style 4 Headphones True Wireless Stereo (TWS) In-ear Calls/Music USB Type-C Bluetooth Violet

Weight & dimensions
Depth: 35 mm
Height: 30 mm
Width: 65 mm
Weight: 42 g

Performance
Music playback: Yes
Works with Apple Siri: Yes
LED indicators: Status
Wearing style: Inear
Headset type: Binaural
Volume control: Button
Control type: Buttons, Touch
Product type: Headphones
Product colour: Purple
Works with the Google Assistant: Yes
Recommended usage: Calls/Music

Packaging data
Package type: Box

Packaging content
Charging case type: Wired
Charging case connector type: USB TypeC
Quick start guide: Yes
Charging case capacity: 400 mAh
Cables included: USB TypeC
Charging case: Yes

Ports & interfaces
Bluetooth version: 5.1
Connectivity technology: True Wireless Stereo (TWS)
Bluetooth profiles: A2DP, HSP, AVRCP, SBC, HFP
Bluetooth: Yes
Wireless range: 20 m
USB connector: USB TypeC
Frequency band: 2.4 GHz

Battery
Continuous audio playback time (with charging case): 25 h
Battery recharge time (charging case): 1.5 h
Battery capacity (charging case): 400 mAh
Battery technology (charging case): Lithium Polymer (LiPo)
Input voltage (charging case): 3.7 V
Battery recharge time: 1.5 h
Right earpiece battery capacity: 30 mAh
Left earpiece battery capacity: 30 mAh
Battery voltage: 3.7 V
Battery type: Builtin battery
Continuous audio playback time: 5 h
Battery technology: Lithium Polymer (LiPo)
Battery charge indicator: Yes

Microphone
Microphone type: Builtin
Microphone frequency: 100 10000 Hz
Microphone sensitivity: 42 dB

Headphones
Ear coupling: Intraaural
Driver type: Dynamic
Driver unit: 1 cm
Headphone frequency: 20 20000 Hz