Brand: lenovo fashion model: lp40 color: white bluetooth frequency: 2.4 ghz bluetooth range: 10 meters without obstacles driver diameter: 13mm sensitivity: 98 db impedance: 16 ohms frequency range: 20 hz - 20 khz battery capacity: earbuds: 43mah charging station: 310mah talk / play time single earbud: 6 to 8 hours both earplugs: 6 to 8 hours standby: 120 hours