New old stock
The REL LongBow wireless transmitter is compatible with the No. 25, 212/SE, S/5 SHO, S/3 SHO, Carbon Limited, and Habitat1 subwoofers.
It is specifically designed for the Serie S subwoofers, including the S3 SHO, S5 SHO, and 212SE models.
The system is not compatible with the G1 Mark II, S/812, S/510, Serie T/i, or Serie HT subwoofers.