Innovative, mobile, very efficientPlace - Switch on - Marten-freeNo expensive assembly costsNo hassle power supply requiredReady for immediate use In the future, you will no longer have to be bothered by unwanted martens visiting your local. The Marderfrei-MOBIL marten repellent keeps biting pests away from your car, home, garage, barn, attic or gazebo with ultra-high interval tones. Immediately ready to go, no hassle electrical connection and no assembly required. Built-in 60 second (+/-20%) interval circuit prevents the marten from getting used to the sound. Continuous operation for at least 6 months depending on battery statusEffective surface area for approximately 40 m. Technical data: Frequency: 12KHz, approximately 78 db , output frequency: cyclic, LED indication. The case is heat resistant up to 110C. The LED on the top of the device lights up when the device emits a sound. No effect against dogs and cats. Dimension: (Lxwxh): 13.5 x 7.5 x 3.0 cm. Lle mounting material is included in delivery. Please order the appropriate batteries (4 x LR14) directly with the device!