The Byrna Duo is an ear-piercing 130dB Personal safety alarm plus pepper spray with tear gas. Fits in the palm of your hand. The Duo is unlike any other product on the market as the alarm features a rechargeable battery and the pepper spray cannister can be replaced after use.THE DUO ADVANTAGERechargeable batteryEasily reloadable self-defense spray compartmentEffective range of up to 12 ft. to keep you safe from a distanceCompact design fits in the palm of your hand/bag for discreet carryCONTENTS INCLUDE:One Byrna Duo unitOne 0.5oz Inert Training CanisterOne 0.5oz Tear Gas + Pepper CanisterConvenient carabiner clip for secure attachmentCharging cable for continuous protection