Sandberg 126-53 Wireless Travel Headset ANC

 Advanced ANC and ENC technologies Construction type: Over-Ear | Fastening type: Headband | Folding construction: Yes | Connection: Wired and wireless | Frequency range: 20Hz-20KHz | Impedance: 32 Ω | Sensitivity: 116dB±3 | Built-in microphone: Yes | Noise cancellation: Yes | Wireless connection: Bluetooth | Bluetooth profiles support: A2DP, HFP, HSP, AVRCP | Volume control: Yes | Cable length (m): 1.0 + 0.3 | Additional functions: 30 h battery (ANC off), 20 h (ANC on) | Color: Black | Dimensions: 17.5 × 20 × 7.5 cm | Weight: 228 g