| Sony MDR-RF7100 can only be used with the MDR-DS7100 system as an additional headphone or a replacement. It does not contain the AC adaptor to charge the headphone battery, so if you do not already have the DS7100 system, you cannot use this headphone. If you already have the system, then there is nothing more I can tell you about this headphone, right? Available in Black color only. Product Specifications:
- Can only be use with the MDR-DS7100 system as a additional headphones or a replacement.
- It does not contain the AC adaptor to charge the headphone battery.
- Transmission range of up to 95 feet (30m).
- Closed dynamic type.
- 50mm CCAW drivers unit.
- Frequency: 6-25,000Hz.
- Lithium-ion rechargeable battery included.
- Battery life: 13 hours (Battery fully charged), 4 hours (Quick charged for 30 minutes).
- Headphone weight at 300g excluding the cord.
- Available in Black color only.
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