WLLH (1400 kHz, La Mega 95.1) is a commercial radio station in Lawrence, Massachusetts, United States, serving the Merrimack Valley region.

From 1937 until 2019, WLLH operated with an unusual configuration of synchronized dual transmitters, located in Lowell and Lawrence, which broadcast on a common frequency.

[4][5] On November 11, 1928, under the provisions of the Federal Radio Commission's General Order 40, WLEX moved to 1420 kHz with 100 watts, time-sharing with Boston-based religious station WSSH.

[7] WLEY was purchased by Alfred Moffat, who changed the call letters to WLLH on August 13, 1934, and moved the station from Lexington to Lowell on October 10, 1934.

[12] The dual WLLH transmitters moved to 1400 kHz on March 29, 1941, with the implementation of the North American Regional Broadcasting Agreement (NARBA).

By the 1990s, under Arnold Lerner's Merrimack Valley Wireless Talking Machine Company, WLLH had adopted an adult standards format, and was the radio home of the Lowell Spinners minor league baseball team.

[24] WLLH returned to the air in late October 2009, once again carrying Spanish-language tropical music under the "La Nueva Mega" branding.

[28] With the elimination of the Lowell operation, WLLH continued to broadcast from the formerly secondary site at Lawrence, and changed its community of license to that city.