Yeah it’s the classic. Got it from Amazon. I am able to fit it around the rear wheel, frame, and bike rack. I also use this alarm/horn which is super loud but great.

SOWUNO 125Db Loud Bicycle Electric Horn USB Charging Bike Alarm Bells with 2 Remote Control Waterproof Ring Anti-Theft Vibration Alarm for Mountain Bike | Road Bicycle | Scooters etc (Alarm Horn) https://www.amazon.com/dp/B08L318LDX/ref=cm_sw_r_cp_api_glt_fabc_XZDTQ0R6GSB3V9ATBA51