Energy Sistem Style 4 True Bluetooth earphones. Guarantee 3 years ! (Stone)

Ergonomic, compact, lightweight design to fit comfortably in your ear.

Enjoy your music and calls and forget about running out of battery with the 25-hour battery life (5 hours every time you charge the earphones and 20 additional hours with the charging case).

Use the Voice Assistant feature to find what you´re looking for with voice commands.

Compatible with ESmart Connect app to configure and customise your earphones.

Audio:

Driver diameter: 10 mm

Type: Dynamic

Latency: 100 ms

Frequency response: 20Hz - 20 KHz

Connectivity:

Bluetooth version: 5.1

Bluetooth profiles: A2DP / AVRCP / HFP / HSP

Bluetooth range: 20 m

Battery:

Charging system: USB type-C

Type: LiPo

Capacity: 30 mAh

Voltage: 3.7 V

Battery life - Normal use: 5 h

Charging time: 1.5 h

Type (charging case): Li-Po

Capacity (charging case): 400 mAh

Microphone:

Hands-free: Yes

Microphone - Type: Built-in

Microphone - Sensitivity: -42 dB ± 3 dB (@1 kHz)

Frequency response: 100 Hz ~ 10 kHz