How many headphone classes have a US MSRP of $150?
CREATE TABLE table_1601027_1 (headphone_class VARCHAR, us_msrp VARCHAR)
SELECT COUNT(headphone_class) FROM table_1601027_1 WHERE us_msrp = "$150"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_1601027_1 (headphone_class VARCHAR, us_msrp VARCHAR) Question: How many headphone classes have a US MSRP of $150? [/INST] SELECT COUNT(headphone_class) FROM table_1601027_1 WHERE us_msrp = "$150" </s>