Bluetooth version: V4.1
<br />Frequency range: 2.4GHz-2.48GHz
<br />Operating distance: up to 10m (free space)
<br />Bluetooth profiles: A2DP¡¢AVRCP¡¢HSP¡¢HFP
<br />Standby time: up to 180hrs
<br />Talk/music playtime: about 5 hours
<br />Charging time: about 2 hours
<br />Frequency response: 20Hz-20kHz
<br />Operational temperature: -10 to 50¡ãC