SolarVoice 908 is a solar-powered Bluetooth headset providing an immense Standby time under sunlight with: Noise reduction for call clarity by employing an advanced digital signal processing software. Multipoint connection to let the headset to connect simultaneously to two mobile phones A2DP for streaming multimedia audio - watching a video with audio is now possible Sophisticated design integrated with a highly visible solar panel Green flashing light indicates solar charging on the solar panel An elegant headset cradle designed for desktop and in-car use Innovative ear buds eliminate any plugged-ear sensation and fatigue Ergonomic ear hook Talk Time: up to 5 hours Standby Time: up to 140hours without sunlight, immense standby while in optimum sunlight Dimensions: 54.5(L) x 17.3(W)x 12.5mm(H) Weight: 12 grams