The DWS TGS 20 300 One-Way Team Tour Guide System 10 from Williams Sound is a tour guide system designed for small groups that allows up to 20 people to listen simultaneously. It consists of a DLT 300 transceiver, 20 DLR 360 receivers, 1 MIC 044 2P headset microphone, 20 EAR 022 earphones, 1 silicone skin for the DLT 300, a CCS 030 DW 16 system carry case, and 20 AAA batteries for the receivers.