Complete Sennheiser HD1 In-ear around the neck bluetooth headset Specs (USA Version)

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| General Specifications | |
|---|---|
| Weight (ounces) | 11.0 oz. |
| Weight (grams) | 312 |
| UPC code | 4044155215694 |
| Wearing styles | Around-the-neck |
| Main category | Around the neck bluetooth headset |
| Release year | 2017 |
| Release month | 01 |
| Release day | 15 |
| SERIES | HD1 |
| Audio Features | |
| Speaker Frequency Range | 15Hz to 22000Hz |
| Speaker total harmonic distortion | Less than 0.5 percent (at 1kHz/100dB SPL) |
| Sound Quality | Dynamic transducer |
| Number of microphones | 1 |
| Microphone type | Omni-directional |
| Microphone Sensitivity | -44dB V/Pa (as per 121 TR 9-5) |
| Under The Hood | |
| NFC | ![]() |
| Talk time | 10.0 hours (600 minutes) |
| Battery | Lithium-ion Polymer |
| Battery Power | 170mAh |
| Battery charging time | 90 minutes |
| Charging plug | MicroUSB |
| Physical Specs | |
| Finish | Sheepskin nappa leather headband, Chrome ear buds, Polycarbonate |
| Connectivity | |
| Bluetooth Technology | 4.1 |
| A2DP | ![]() |
| Bluetooth Profiles Supported | AVRCP, HFP, HSP, aptX, AAC |
| Other Specs & Features | |
| Silent or Vibrating alerts | ![]() |
| Voice prompts | (battery and pairing) |
| Multipoint | (2 devices) |
| Available colors | Black with red |
| Special Included Accessories |
|
| Control buttons | Volume up/down, Multifunction button, Power on/off |
| Indicator lights | (pairing and battery status indicator) |
Description:
Also known as: Sennheiser M2 IEBT.







