?Main Features:<br />↓ 5 different mode and 110db loud sounds、 increasing the safety while cycling<br />↓ Sound button is very sensitive <br />↓ IP4 waterproof grade、 no worry about light rains<br />↓ Easy to install and it fits all kinds of bicycle with adjustable holder<br />↓ Powered by 2 x AAA battery (not included)<br /><br />    Specifications<br />General<br />	 Brand: Rockbros                                                  <br />                        Type: Bike Bell                                                  <br />                        Material: PC                                                  <br />                        Color: Black                                                	<br />Basic Information<br />	 Product weight   : 0.069 kg                                                  <br />                        Package weight  : 0.110 kg                                                  <br />                        Product size (L x W x H)   : 9.4 x 4.63 x 10 cm / 3.69 x 1.82 x 3.93 inches                                                  <br />                        Package size (L x W x H)  : 16 x 8 x 7 cm / 6.29 x 3.14 x 2.75 inches                                                	<br />Package Contents<br />	 Package contents: 1 x ROCKBROS LB1001 Bicycle Electric Horn Bell、 1 x Holder、 1 x Screwdriver                                                	<br /><br /><br /><br />                                            <br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br />                                                <br />