Pickup System Set for Double Bass With internally powered active preamp control module Built-in lithium battery Compatible with most wireless systems and effect pedals Compatible with most wireless systems and effect pedals Set contents: Active Master Elite preamplifier module Single flexible micro gooseneck from the Feather series with small jack plug Dual Flexible Micro Gooseneck from the Feaather series with small jack plug 3" Flexible micro gooseneck from the Grip series with small jack plug 6" Flexible micro gooseneck from the Grip series with small jack plug Dual 6" flexible micro gooseneck from the Grip series with small jack plug 4/4 Violin/Mandolin Carpenter jack socket 4.5 m Lightweight instrument cable with right-angled and straight jack plug Bass/cello clip with rubber padding Bridge clips with cork and rubber padding Feather clips with rubber feet and rubber absorbers Suction-Mini suction cups Myers Micro windscreen Transport box with matching foam padding for all components of the set Belt clip