Screaming O Wow is a super powerful vibrating erection ring. Vibrating erection ring with super powered bullet. Stretchy, comfortable erection ring. Removable bullet for multipurpose fun. Country of Origin China. Battery type used replaceable AG13. Battery life approximately 80+ minutes. Materials body safe SEBS silicone ring, ABS plastic bullet vibrator. Product type vibrating ring. Texture pleasure ticklers. Waterproof vibrating ring.