TONEcube tone generator trace wire paths and identify cables in common wiring systems. Five discrete tracing tones. Constant output level over useful battery life. Heavy-duty leads with rugged dual-mode modular plug for direct connection to both RJ11 & RJ45 jacks. Momentary slide switches prevent accidental operation. Designed for use with Klein Tools VDV test tools (Cat. No. VDV526-054, VDV500-060). Works with many other manufacturers’ analog tone probes.