An active DI Box for guitar with fantastic speaker simulation.
The Behringer Ultra-G GI100 DI Box features a switchable speaker simulation that so realistically emulates a 4x12 cab you may never mic your speakers again. Features include switchable input attenuation allowing levels of up to +48dBu, a ground lift switch to eliminate loop problems, and a rugged roadproof aluminum case. An internal battery automatically shuts off when phantom power is connected.
The Guitar Link Wireless System from Alesis is a portable guitar wireless system that features single button pairing of its transmitter and receiver. It operates on a 2.4GHz frequency spectrum and can be battery or AC powered with an optional AC adapter.