Energy Sistem Urban Beat Bluetooth earphones

Audio
Speaker diameter: 10 mm
Type: Dynamic
Frequency response: 20 Hz ~ 20 kHz
THD (< 1%): Yes

Connectivity
Voice assistant (Google, Siri): Yes
Bluetooth version: 5.3
Bluetooth - Class: 2
Bluetooth - Frequency band: 2.4 GHz
Bluetooth profiles: A2DP / AVRCP / HFP / HSP
Bluetooth range: 20m
Compatible Bluetooth codecs: AAC / SBC
Bluetooth - Maximum output power: < 20,00 dBm
TWS technology: Yes

Battery
Charging system: USB type-C
Type: LiPo
Capacity: 35 mAh
Voltage: 3.7 V
Battery life - Normal use: 5 h
Charging time: 1 h
Charging case: Yes
Type (charging case): Li-Po
Capacity (charging case): 300 mAh
Voltage (charging case): 3.7 V
Battery life (charging case): 17 h
Charging time (charging case): 1.5 h

Microphone :
Hands-free: Yes
Microphone - Type: Built-in
Microphone - Sensitivity: -42 dB ± 3 dB (@1 kHz)
Frequency response: 100 Hz ~ 10 kHz

Playback control: Yes
Volume control: Yes
IPXX certified: IPX4

Size and weight:
Height: 55 mm
Wide: 42 mm
Depth: 20 mm
Weight: 46 g