Make all of your music easy listening. Featuring JBL Pure Bass Sound, the JBL TUNE 115BT headphones offer a grab ‘n’ go, wireless solution for your everyday fun. And there’s more than great sound: the JBL TUNE 115BT allow you to make or take hands free calls and feature up to 8 hours of battery life. Bluetooth version-4.2 Driver sensitivity at 1kHz/1mW (dB)-102 Dynamic frequency response range (Hz)-20Hz-20kHz Control and Connection Specifications Bluetooth profiles-HFP V1.6.HSP V1.2.AVRCP V1.5.A2DP V1.2- Bluetooth frequency-2.402GHZ-2.480GHZ- Bluetooth transmitted modulation-GFSK/DQPSK/8DPSK Charging time (hours from empty)-<2hrs Maximum Play Time (hours)-8 Features Bluetooth-Yes Charging cable-Yes Multi-point Connection-Yes Remote control in cable-Yes 3-Button Remote/ Mic-Yes Built-in Microphone-Yes Ear-bud-Yes Flat Cable-Yes Hands Free Call-Yes JBL Pure Bass Sound-Yes Multi-Point Connection-Yes Rechargable battery-Yes Wireless-Yes