H4 Dual PTT, Dual Audio Talk Speaker Mic
1、Dual link Push-To-Talk control.
2、Dual audio connection with two Bluetooth devices at the same time, such as cellphone, two-way radio
3、Dual talk, merged listen, to keep the talk between the two devices confidential to each other
4、Outstanding DSP noise cancellation and anti-howling
5、Support wireless charging(Optional)
6、Support PTT for most Poc apps
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