Energy Sistem Hoshi ECO Bluetooth Headphones

Audio
Speaker diameter: 40 mm
Type: Dynamic
Impedance: 32 Ω
Frequency response: 20 Hz ~ 20 kHz

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: SBC
Bluetooth - Maximum output power: < 20,00 dBm

Battery
Charging system: USB type-C
Type: LiPo
Capacity: 400 mAh
Voltage: 3.7 V
Battery life - Normal use: 23 h
Charging time: 1.5 h

Microphone :
Hands-free: Yes
Microphone - Type: Built-in
Microphone - Sensitivity: -38 dB ± 3 dB (@1 kHz)
Frequency response: 10 Hz ~ 10 kHz

Power supply :
Connectors: USB type C
Cable length: 50 cm

Compatibility: Mac / PC Windows / Smartphone / Tablet / TV

Playback control: Yes
Volume control: Yes

Size and weight:
Height: 190 mm
Wide: 180 mm
Depth: 80 mm
Weight: 149 g