This is the MK Denshi Mimimoto Hon. Although it hasn't been used much, I am selling it as a used item. I have confirmed that it works. If you place the main unit near a TV or a distant sound source, you can hear clear sound in your ears without turning up the TV's volume. It also seems useful for conversations with people who are far away. ◆ Manufacturer: MK Seiko ◆ Product Name: Mimimoto Hon Clear ◆ Model Number: ES-700GU (ES700GU) ◆ Microphone Unit (Transmitter) ・ Modulation Method: Other methods ・ Transmission Frequency Band: 2.4GHz band ・ Range: Approximately 10m ・ Power Supply: Dedicated lithium polymer rechargeable battery (DC 3.7V 850mAh) ・ Continuous Use Time: Approximately 10 hours maximum ・ Input Terminal: φ3.5 stereo mini-jack ・ External Dimensions: Width 42mm x Height 15mm x Depth 80mm ・ Weight: Approximately 40g ◆ Receiver Unit (Receiver) ・ Receiving Frequency Band: 2.4Ghz band ・ Power Supply: Dedicated lithium polymer rechargeable battery (DC 3.7V 260mAh) ・ Continuous Use Time: Approximately 8 hours maximum ・ Speaker: φ20mm x 2 ・ External Dimensions: Width 125mm x Height 70mm x Depth 163mm ・ Weight: Approximately 50g #Earphones #HearingAids #Speakers