Original A10 Stereo Headset Second Generation, Never Used, No Scratches

Brand new A10 stereo headset, second generation, available for sale. Send me your offers via private message or WhatsApp. Ideally, it should be paired with a Sony 4 or another device besides Sony 5, because Sony 5 causes slight microphone echo, although the sound quality is excellent and I highly recommend it to anyone. Reason for selling: buying a new microphone.