This Drop-in Multi-Charger from Williams Sound stores and charges up to 5 under-the-chin style receivers (not included). This charging accessory offers a smart charge feature. This phone accessory an be daisy-chained. Individual Red LED Charging Indicators for each charging bay. 100-240 VAC universal power supply. Approvals: WEEE, RoHS. 1 year manufacturer's warranty (90 day warranty on cables and power supply).