Williams Sound DWS INT 2 2.0 Digi-Wave Language Interpretation System, Range of up to 100 feet outdoors/200 feet indoors, 2.4GHz operation is legal for use in most countries Can accommodate floor (or common) language, plus up to 14 simultaneous languages Complete, portable, wireless interpretation system in a briefcase 2.4GHz operation is legal for use in most countries Range of up to 100 feet outdoors/200 feet indoors (depending on environmental conditions). All day operation on a single, full charge Includes: (1) DLT 100 2.0 transceiver, (10) DLR 60N 2.0 receivers, (10) BAT 010-2 AAA alkaline batteries, (1) MIC 044 2P headset microphone, (10) EAR 022 earphones, (1) CCS 044 silicone skin and (1) CCS 030 DW system carry case