Automatic pairing and manual pairing: Retekess T130 church translation system features a one-button automatic pairing function; which is easy to set up and allows all receivers to synchronize with the transmitter's channel within 5 seconds; you don't have to spend time manually syncing each receiver

Rechargeable battery; Retekess T130 assistive listening devices transmitter has a built-in 900mAh battery that can work for 12 hours; the receiver has a built-in 600mAh battery that can work for 18 hours; and you don't need to charge it frequently

Retekess TT126 two way communication; the transmitter has two modes; one-way explanation and two-way intercom; two-way communication; and supports the receiver to speak

Retekess TT126 2 way communication system range of 280m/919ft; allowing participants to move freely within this range without losing connection; In factory environments; participants explore different areas of the factory; without missing any information or instructions

USB Powered Devices: can charge for up to 16 receivers or transmitters simultaneously; overcharge protection charges safely; LED Indicator; the led indicator lets you know the power is active while does not cause bright light in the dark