Crystal clear calls with hd sound is what the 010 bluetooth headphones are all about. The headphones are a combination of stylish design and modern technology. They are an ideal choice for people who like to enjoy their music with wireless connection from their handsets or laptops. You can answer or make phone calls using this headset even while listening to music. Users can also control the internal music functions of their handsets using this headphone. The headset is made of a durable yet lightweight material that holds out against continuous use and travel. Product Features: Brand: Model Number: -010 Color: Black Connectivity: Wireless Compatible with: All Type: Over Ear Microphone included: NO Noise Cancelling: NO Materials: Acrylonitrile butadiene styrene and Polycarbonate Bluetooth Version: V2.1 EDR USB Charge: DC 5V IN . FM frequency: 87.5-108MHz. Bluetooth Frequency: 2.401-2.480GHz . Bluetooth distance: 10 meters. Frequency: 50Hz-20KHz. Impedance: 16 ohm. Driver Size: 3.5 mm. Sensitivity: 110 db/mW Output Power: 35 mw SNR: 88 dB Charging Time: less than 2 hours. Playing Time up to 10 hours. Talk Time Up to 7-8 hours. Standby Time Up: 120 hours.