Iqua Bluetooth Stereo headset BHS-701 orange. Wireless range: 10 m, Bluetooth profiles: A2DP, AVRCP. Headphone frequency: 20 - 20000 Hz, Headphone sensitivity: 103 dB, Acoustic system: semi-open. Battery technology: Lithium Polymer (LiPo), Talk time: 12 h, Standby time: 350 h. Operating temperature range (T-T): -20 - 55 °C, Storage temperature range (T-T): -20 - 55 °C. Charging time: 210 min