本厂地处中国宁波沿海经济发达地区，地理位置优越，交通便捷，靠杭甬高速公路余姚道口。 　　我厂专业生产各种金属口哨、塑料口哨、跳绳、健身器械等。产品质量高、品种多，深受消费者的信赖，本厂在1996年注册商标《雷声》，在文体行业有较高的知名度。 我厂拥有专业的设计师及雄厚的制作技术力量，拥有高科技的激光焊接技术,产品已达欧盟标准,同时承接客户来样、各种产品规格及各种大小订单，保证产品质量，时间较快。 　　产品远销美国、日本、俄罗斯、欧盟、港澳台地区等国家，本厂真诚邀请国内外朋友参观洽谈树立良好的友谊和合作关系。 The LEISHENG whistle has been relied upon by top referees and officials for 20 years. The LEISHENG whistle is traditional and popular, which is ideal as a referees whistle, and it has a waterproof speed pea which works in any weather conditions. It's easy blow gives an instant response, perfect for petulant players, can also fits comfortably over wrist for work, exercise, sports and whistle is perfect for additional personal security.