Energy Sistem Style 2 Bluetooth earphones ( Black).Guarantee 3 years !

Wireless earphones with 20 hours of battery life thanks to Bluetooth 5.1. Enjoy the most powerful sound with Deep Bass. With a compact charging case to take them anywhere. Stereo calls. USB Type-C charging connector. AUDIO Frequency response: 20 Hz 20 kHz Driver diameter: 8 mm Maximum power: 5 mW In-ear design Type: dynamic CONNECTIVITY Bluetooth 5.1, class 2 Frequency band: 2.4 GHz Maximum output power: < 20.00 dBm Compatible Bluetooth profiles: HSP / HFP / A2DP / AVRCP Supported audio codecs: SBC / AAC Up to 20 m distance range True Wireless function with auto-pairing Hands-free function Voice assistant compatible with Google/Siri MICROPHONE Type: built-in microphone Sensitivity: -42 dB ± 3 dB (@1 kHz) Frequency range: 10 Hz ~ 10 kHz BATTERY Earbuds: Capacity: 30 mAh (each earbud) Type: