Sound quality that fits your ears Bluetooth headphones with ergonomic design that adapts to the shape of your ear. Multi-function buttons, built-in microphone and up to 8 hours of battery life. The best combination of sound, style and comfort.   The city as a way of life Riding the bus, walking the streets of your city or enjoying a relaxing afternoon. Let the music be with you all day long thanks to the freedom of Bluetooth playback.   Unmatched ergonomics Design crafted to fit the shape of your ear. So light you barely notice you're wearing them. The shape of the earbuds directs sound straight into the ear canal, so you can enjoy clear bass and high tones.   Hours and hours of music The battery provides 8 hours of continuous music, so your songs can keep up with your daily routine.   All functions at the touch of a button Answer calls, skip to the next/previous song and turn the volume up or down. Use only the buttons on the headphones. No need to take the phone out of your pocket.   Technical specifications CONNECTIVITY Bluetooth: 4.2 Supports HSP / HFP / A2DP / AVRCP protocols Range: 10 m Operating frequency: 2.4 GHz Maximum output signal: DRIVERS: Frequency response: 50 20.000 Hz Driver diameter: 14 mm Sensitivity: 111 ± 3 dB (@ 1 KHz) Maximum power: 5 mV Type: dynamic THD <1% MICROPHONE: Sensitivity: -42 dB ± 3 dB (@ 1 KHz) BATTERY: Capacity: 100 mAh / 3.7 V Type: Li-Po Battery life: Battery life at 50% volume: 8 hours * Charging port: microUSB Type-B Charging time: OTHER SPECIFICATIONS MicroUSB charging cable * Battery life depends on the selected volume level and the type of music played. SIZE AND WEIGHT 35 x 18 x 15 mm 15 g