Energy Sistem SreetMusic True Wireless Headphones - Bluetooth 5,4 - 20h Battery Life - Deep Bass - Recycled Materials

Completely wireless headphones thanks to True Wireless Stereo technology and Bluetooth 5,4.
Built-in microphone and stereo calls to talk. comfortably without worrying about noise.
Access your smartphone using the voice assistant quickly and easily.
Deep bass and powerful sound thanks to its 13mm driver. You will vibrate in every song!
Enjoy your music and calls and forget about the battery with its 20 hours of autonomy. 4 hours for each charge of the headphones and an additional 16 hours in the charging case.
Headphones with compact design, great comfort and safety.
Headphones made with 100% recycled plastic and recycled cardboard packaging, GRS and FSC certified.
Specifications:
AUDIO
-Diameter: 13 mm
-Bass perception (0 to 10): 7
-Perception of fidelity (0 to 10): 7
-Latency: <200ms
-Impedance: 16 Ω
-Frequency response: 20 Hz ~ 20 kHz
-Headphone type: Button
-Type: Dynamic
CONNECTIVITY
-TWS technology: Yes
-Voice assistant (Google, Siri): Yes
-Bluetooth:
-Range: 20 m
-Class: 2
-Supported codecs: AAC / SBC
-Working frequency: 2,4 GHz
-Profiles: A2DP / AVRCP / HFP / HSP
-Maximum signal power: < 20,00 dBm
-Version: 5,4
BATTERY
-Charging case: Yes
-Charging time: 1 hour
-Charging system: USB type C
-Voltage: 3,7 V
-Type: LiPo
-Capacity: 25 mAh
-Autonomy: 4 hours
-Battery charging case:
-Charging time: 1,5 h
-Voltage: 3,7 V
-Charging case:
-Autonomy: 16 h
-Capacity: 300 mAh
-Battery type: Li-Ion
MICROPHONE
-Hands free: Yes
-Type: Integrated
-Frequency range: 100Hz ~ 10kHz
-Sensitivity: -42 dB ± 3 dB (@1 kHz)
POWER
-Connectors: USB type C
-Cable length: 30 cm
COMPATIBILITY
-Compatibility: Mac / Windows PC / Smartphone / Tablet / TV
OTHER FEATURES
-Playback control: Yes
-Volume control: Yes
DIMENSIONS AND WEIGHT
-Product:
-Height: 50 mm
-Width: 45 mm
-Weight: 31 g
-Deep: 25 mm