Neckband Multimedia Headphone with Microphone for PC 1. colorful or pantong color 2. promotional headphone Neckband Multimedia Headphone with Microphone for PC 1. colorful or pantong color2. promotional headphone3. super bass sound4. beautiful package Speaker: φ40mmSensitivity: 105dB S.P.L at 1KHzImpedance: 32ΩFrequency Respense: 20Hz-20,000HzRate Power: 3mWPower Capability: 15mWCable Length:1.5m ...