Rivano RNBT04 Wireless NeckBand

Wireless : Version 5.0 • Talking Time: 28Hours • Music Time: 25Hours • Standby Time: 150 Hours • Charging Time: 1 Hours • Charging Type: Micro USB • Battery Capacity: 210mAh • Transmission Distance: 35ft.(15m) • Output Power: 3mW X 2 • Call warning : Yes • Sensitivity: 102DB at 1HKHZ • Impedance:16 • Frequency Range: 20HZ-20KHZ • THD: .