iSuperb Cool Bluetooth Wireless Music Beanie Hat With Microphone & Stereo Headphone Hands Free, Best Christmas Gift (Bluetooth Beanie Wine Red)
Specifications: 1. Bluetooth: V3.0+ EDR 2. Frequency: 2.402GHz-2.480GHz 3. Transmission distance: 10M or so 4. Transmission distance of MIC: ≤ 1M 5. Li-ion Battery: 3.7V/100mA …