【52 Chimes】iMounTEK Wireless Doorbell W/Built-In Mic/LED Indicator. 1 Plugin Receiver/600 Feet Range/No Battery Required-Receiver, 4 Levels Volume/Remote Push Button Transmitter/Fixed Code C Series

Loud and clear sound and it is as easy as described to initially setup. I’ve had this for about 8 months and my only problem is I can’t change the song. Somehow the Instruction Manual must have been discarded. UGH!