This is the Micro Crystal for GWS Pico and Naro size receivers. FEATURES: Works on 27 and 72MHz frequencies Channel number printed on outside of crystal INCLUDES: One GWS Micro Crystal for Pico and Naro size receivers REQUIRES: Installing in receiver COMMENTS: Will work with Positive Shift (Futaba & Hitec) and Negative Shift (Airtronics & JR) Updated 11-9-05 JBM jxs 11/07/05 ir/jxs