brand new and high quality Features: 3pin extension cord function: transferable, thumb shifter/turn the handle, brake power off, gear shift power off. 1T2 line( short style/long style) function: suitable for mid-mounted motors, double-headed connection to power-off brake lever or power-off induction, yellow protruding for head connects to the original brake lever wire. This is a sensor can detect the action when rider shifted the gear on eBike, a signal will be generated immediately and cut the power during gear shifting process. It can help rider to avoid some problems like chain or derailleur damaged also can bring some smooth shifting feeling to rider, it can widely be used for Bafang BBS01 BBS02 BBS03B BBSHD middle motor drive system. Ebike Gear Sensor only,other accessories demo in the picture is not included. Specification: Material: ABS Optional Length: A1/A2/A3, C1/C2/C3, for D1/for D2, E1, E2, G1, G2, H A1/A2/A3 Length: app.57cm/22.44in C1/C2/C3 Length: app.56cm/22.05in for D1/for D2 Length: app.43cm/16.93in E1 Length: app.20.3cm/7.99in E2 Length: app.50.8cm/20in G1 Length: app.40cm/15.75in G2 Length: app.60cm/23.62in H Length: app.76cm/29.92in Color: Black Optional Style: 3pin extension cord 1, 3pin extension cord 2, 3pin extension cord 3, display extension cord 1, display extension cord 2, display extension cord 3, cuo off power brake line, cuo off power brake line(Metal), 1T2 line( short style), 1T2 cable (long style), speed sensor extension cable (40cm), speed sensor extension cable (60cm), hydraulic Brake Sensor Quantity: 1 Pc Note: No retail package. Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package Contents: 1 x Ebike Gear Sensor