Iqua Bluetooth wireless headset BHS-303 black. Wireless range: 10 m, Bluetooth version: 2.0+EDR, Bluetooth profiles: HSP 1.1. Acoustic system: clip-on. Battery technology: Lithium Polymer (LiPo), Talk time: 6 h, Standby time: 150 h. Dimensions (WxDxH): 51 x 19 x 12 mm, Weight: 10 g. Operating temperature range (T-T): 0 - 50 °C