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Sennheiser HDR 120 RF 20hrs Black
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Pyle PPCM20 RF 8hrs Black
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Technical Specifications
| Acoustic System Name | Open Back | Closed Back | |
| Battery Charge Indicator | - | 1 24345 | |
| Battery Life (max) | 20 hours | 8 hours | |
| Battery Type | AAA | Built-in battery | |
| Cables Included | - | Mini-USB, RCA | |
| Charging Source | - | USB | |
| Colour of Product | Black | Black | |
| Connectivity Technology | Wireless | Wireless | |
| Depth | - | 54.9 mm | |
| Driver Type | Dynamic | - | |
| Driver Unit Size | - | 30 cm | |
| Ear Coupling | On-ear | On-ear | |
| Ear Coupling - On-ear | Yes | Yes | |
| Foldable | - | Yes | |
| Headphone Frequency | 22 - 19500 Hz | 20 - 20000 Hz | |
| Headphone or Headset | Headphones | Mobile headset | |
| Headphone Sensitivity | 106 dB | 80 dB | |
| Headset Type | Dual Ear | Dual Ear | |
| Height | - | 145 mm | |
| Impedance | 24 Ω (Ohms) | 32 Ω (Ohms) | |
| Microphone Number | 1 | 1 | |
| Multi-function Control - Position | 1 | On-ear | |
| Multi-function Control - Type | Digital | Digital | |
| Multi-function Control Present | Yes | Yes | |
| Noise Reduction | - | Yes | |
| Number of Batteries Supported | 2 | - | |
| Power Button | - | Yes | |
| Purpose | - | PC/Gaming | |
| Rechargeable | - | Yes | |
| RF Connectivity | Yes | Yes | |
| RF Frequency Band | - | 2.4 - 2.48 GHz | |
| USB Connectivity | - | Yes | |
| USB Port - Mini | - | Yes | |
| USB Port - Type | - | Mini | |
| Volume Control Present | Yes | Yes | |
| Volume Control Type | Rotary | Digital | |
| Wearing Style | Head-band | Neck-band | |
| Weight | 230 g | 277 g | |
| Width | - | 130 mm | |
| Wireless Range | - | 10 m | |
| Wireless Type | - | RF |
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