Energy Sistem True Wireless Earphones Serenity ANC with Built-in Microphone and Bluetooth in Space color

USB Type-C charging port: Yes
Depth: 25 mm
Weight: 40 g
Width: 64 mm
Height: 50 mm
Product colour: Black
Works with the Google Assistant: Yes
Plug and Play: Yes
Suitable for indoor use: Yes
Protection features: Splash proof
Suitable for outdoor use: Yes
Wearing style: In-ear
Product type: Headset
Headset type: Binaural
Control type: Touch
Clear sound: Yes
International Protection (IP) code: IPX4
Suggested gender: Boy/Girl
Recommended usage: Calls/Music
Music playback: Yes
Works with Apple Siri: Yes
LED indicators: Yes
Control unit type: On-ear control unit
Package type: Hanging box
AC adapter included: No
Charging case connector type: USB Type-C
Charging case capacity: 500 mAh
Cables included: USB Type-C
Charging case: Yes
Quantity: 1
USB connector: USB Type-C
Bluetooth version: 5.4
Connectivity technology: True Wireless Stereo (TWS)
USB connectivity: Yes
Frequency band: 2.4 GHz
Bluetooth: Yes
Bluetooth profiles: A2DP, HFP, AVRCP
Wireless range: 20 m
Battery capacity: 40 mAh
Battery technology: Lithium Polymer (LiPo)
Battery type: Built-in battery
Battery operated: Yes
Continuous audio playback time (ANC on): 5 h
Battery technology (charging case): Lithium Polymer (LiPo)
Battery charge indicator: Yes
Continuous audio playback time: 5 h
Input voltage (earpieces): 3.7 V
Battery capacity (charging case): 500 mAh
Input voltage (charging case): 3.7 V
Battery recharge time: 1 h
Microphone frequency: 100 - 10000 Hz
Microphone sensitivity: -38 dB
Microphone type: Built-in
Ear coupling: Intraaural
Intraaural headphones type: Earbuds
Noise reduction: Yes
Headphone frequency: 20 - 20000 Hz
Total Harmonic Distortion (THD): 1%
Driver type: Dynamic
Driver unit: 1 cm
Impedance: 32 Ω