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

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 (chargin