Brand:Flycool1. DETAIS: - Color: Green/Red/Black/Blue;- Transmission range:10 m- Basic functions: call、 * (on phone support)、 voice dialing * (on phone support)、 redial、 hang up、 volume control、 music、etc.2. SHIPMENT: Package will be sent out IMMEDIATELY as soon as the payment is completed.3. Bluetooth Version: Buletooth 3.0 + EDR、 wireless transmitter standard of class II4. Frequency Coverage: 2.402~2.480GHz ISM band5. Stereo Compression Ratio: 44.1/ 48kHZ6. Charge Power : PC USB、 5V