GLX-D+ Dual Band Digital Wireless is the perfect solution for musicians and presenters who want to go wireless with confidence, and without complexity. With new Dual Band Wireless Technology, GLX-D+ can operate in both 2.4 and 5.8GHz, more than doubling the available bandwidth while also intelligently avoiding interference for reliable, dropout-free audio. Featuring smart rechargeability with up to 12 hours of runtime (improved from prior generation GLX-D), the included lithium-ion battery can be charged multiple ways and offers quick charge capabilities. FEATURES: Includes GLXD2+ Handheld Transmitter with SM58 capsule  Dual Band Wireless Technology Automatic Frequency Management Smart Rechargeability Up to 16 Compatible Systems SPECS: System Compatibility With Frequency Manager: Up to 11 compatible systems in typical setting, and up to 16 under ideal conditions Without Frequency Manager: Up to 4 compatible systems in typical setting, and up to 8 under ideal conditions System Operating Range Indoors: Up to 30 m (100 ft.) typical, with a maximum of 60 m (200 ft.) under ideal conditions Outdoors: Up to 20 m (65 ft.) typical, with a maximum of 50 m (165 ft.) under ideal conditions Transmit Mode: Shure Proprietary Digital - Dual Band (2.4 GHz and 5.8 GHz) Audio Frequency Response: 20 Hz – 20 kHz Note: Dependent on microphone type Dynamic Range: 120 dB, A-weighted RF Sensitivity: -88 dBm, typical Total Harmonic Distortion: 0.07%, typical RF Output Power: 10 mW E.I.R.P. max Operating Temperature Range: -18°C (0°F) to 57°C (135°F) Note: Battery characteristics may limit this range. Storage Temperature Range: -29°C (-20°F) to 74°C (165°F) Polarity: Positive pressure on microphone diaphragm (or positive voltage applied to tip of WA302 phone plug) produces positive voltage on pin 2 (with respect to pin 3 of low-impedance output) and the tip of the high impedance 6,35 mm output. Battery Life: Up to 12 hours GLXD4R+ Dual Band Rack Receiver Dimensions (without antenna) (W x H x D): 7.7” x 6.4” x 1.6” Weight (without batteries): 30.5 oz (866 g) Housing: Steel Power Requirements: 14.5 V - 17 V, 600mA Spurious Rejection: >35 dB, typical Gain Adjustment Range: −18 to 42 dB in 1 dB steps Phantom Power Protection: Yes Audio Output Configuration XLR Output: Balanced 6.35 mm (1/4") output: Impedance balanced Impedance XLR Output: 100 Ω 6.35 mm (1/4") output: 100 Ω (50 Ω, Unbalanced) Full-Scale Output XLR: LINE setting= +18 dBV, MIC setting= −12 dBV 6.35 mm (1/4"): +12 dBV Pin Assignments XLR Output: 1=ground, 2=hot, 3=cold 6.35 mm (1/4") connector: Tip=audio, Ring=no audio, Sleeve=ground Mic/Line Switch: 30 dB Pad Receiver Antenna Input Impedance: 50 Ω Antenna Type: Dual Band 1/2 WaveSleeve Dipole Maximum Input Level: −20 dBm GLXD2+ Dual Band Handheld Transmitter (SM58) Dimensions (W x H x D): 2” x 9.9” x 1.5” Weight (without battery): 275 g (9.70 oz) Housing: Aluminum alloy, ABS plastic Power Requirements: 3.6 V Rechargeable Li-Ion RF Output Power: 10 mW E.I.R.P. max Maximum Input Level: 146 dB SPL IN THE BOX: GLXD24R+/SM58-Z3 Dual Band Wireless System GLXD4R+ Half-Rack Receiver GLXD2+/SM58 Handheld Microphone SB904 Battery Power Supply (2) 22" RSMA Cable (2) Antennas (2) Hardware Kit (2) Bulkhead Adapter Swivel Adapter Zippered Carrying Bag  Manual