Canava Bluetooth Handfree Headphone & headband for Sleeping & Travelling (grey)

Description

Specifications: Bluetooth protocol: Bluetooth 4.1+EDR including ESCO and AFH Power standard: Class 2 Ccommunication distance: 10M Bandwidth: 2.4GHZ (2.402-2.483.5MHZ) Emission sensitivity: about 4dBmReceiver sensitivity: -92dBm Horn parameters: 30mm MIC distance: about 1m Signal-to-noise ratio of SNR: 98dB Continuous play time: 5--6 hours Working current: 10--25mA Charging time: about 2 hours (please full charge before first use). Range of working temperature: -10-50 degrees Operating humidity range: 10-90%