The rechargeable handheld transmitter offers proprietary lockable power on/off switch to avoid accidental power-off during performance. The unique multi-layered metal grille protects the capsule against impact, rolling and pop noise, ensuring clarity of sound. Transmitter has high-efficiency circuitry design. The included single rechargeable lithium battery can be easily removed or interchanged for charging. The intelligent battery charger maintains a high charge capacity for up to 600 charge cycles for cost saving and is environmentally friendly. Proprietary condenser capsules exhibit high fidelity, wide dynamic range, fast transient responses, good feedback rejection, accurate sound image characteristics, transparent sound quality and withstands maximum SPL.