Brand: lenovo fashion model: ht38 color: black material: abs bluetooth version: v5.0 + edr / ble, ultra low consumption bluetooth mode: a2dp 1.3 / hfp1 6 / hsp1.2 / avrcp1.6 / d11.3 bluetooth frequency: 2.4 ghz bluetooth range: 10 meters without obstacles frequency: 20hz-20khz sensitivity: 90 db driver diameter: 13mm battery capacity: earbuds: 30mah 3.7v charging station: 250mah 3.7v talk / play time single earbud: 8 to 10 hours both earplugs: 4 to 5 hours charging station: 18 hours standby: 250 hours charging time: 1 to 1.5 hours charging interface: type c. in-ear yes true touch yes noise cancellation / reduction: yes audio streaming: bluetooth package contains: 1x lenovo ht38 wireless earphones 1x charging station 1x user manual