Hama Active BT. Product type: Headset, Wearing style: In-ear, Recommended usage: Sports. Connectivity technology: Wireless, Bluetooth profiles: A2DP,AVRCP,HFP,HSP, Wireless range: 10 m. Ear coupling: Circumaural, Impedance: 32 ?, Headphone sensitivity: 96 dB. Microphone type: In-line, Microphone frequency: 20 - 20000 Hz, Microphone direction type: Omnidirectional. Continuous audio playback time: 4 h, Battery recharge time: 2 h, Standby time: 180 h