Microphone Sensitivity –44 dB ± 3 dB (1kHz, 0db=1V/Pa) Omni-directional 4 mm Omni-directional microphoneSpeaker Type 11 mm electro-dynamic receiver Sensitivity 110 dB ± 3dB rel. to 1 mW at 1.0 KHz Impedance 16 Ω ± 2.4 Ω at 1.0 KHz 0.2 V Digital Signal Processing (DSP) Noise reduction on transmitted and received audio, Noise dependent volume control, Automatic volume adjustment on received audio, Acoustic shock protection Operating temperature -20° C to 60° C Storage temperature -20° C to 45° C Waterproof No AC power supply 5VDC, 0.25A output, 100-240VAC, 50-60Hz input Charging plug Micro USB B – 7.4 x 2,7 mm BT8040 materials Polycarbonate (PC), Polycarbonate/Acryl Butadien Styren (PC/ABS), TPE, Poly Vinyl Chloride (PVC) Pairing code or PIN 0000 ( 4 Zeros ) Features Auto pairing, Answer/end call, Voice dial*, Last-number redial*, Reject call*, Call hold/ call wait*, Mute, Multipoint, Play music, Quiet mode (turns light off after 1 minute) | | Bluetooth compliance Qualified for Bluetooth Specification version 2.0 + EDR (enhanced data rate)Supported Bluetooth profiles Headset and Hands-free Profiles for phone conversations and Advanced Audio Distribution Profile (A2DP) for streaming music Compatibility Jabra BT8040 is compatible with other Bluetooth devices with Bluetooth 1.1 (or higher) specifications and supports the Bluetooth headset, hands-free audio and / or advanced audio distribution profiles Security 128 bit encryption Operating range Up to 33 feet Paired devices Up to 8 devices - connected to 2 at the same time (multi point) Talk time Up to 6 hours Standby time Up to 200 hours Charging time Approximately 2 hours Weight Less than 10 g (approximately 1/3 oz) Dimensions L1.54 x W.71 x D.47 inches |