Perun ETU++ for G&G with ETUDescription ETU++ is a dedicated replacement for G&G ETU. Works with any G&G ETU replica and its compatible with 7. 4V, 11. 1V and 14. 8V batteries. Thanks to many additional features it gives to the user the possibility to choose an optimal configuration to the requirements of the mission and gain an advantage over the opponent. It can be easily programmed by using a trigger and a button on the device and thanks to quick and easily memorable