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Ships within 48 hours · Estimated delivery Oct 26 - Oct 31
10mm (medium power)
especially with medium focal length telescopes
the SII filter is carefully designed to block all light from H-alpha and NII (nitrogen)
most faint stars do not show up anymore
3mm Product Weight 38g
Retekess Charge Case for TT101 TT102 Wireless Tour Guide System Portable 40 Slot Hospital Paging System 10mm (medium power)Retekess 40 Slot Charging Case for TT101 TT102 Tour Guide Systems The Retekess 40 slot charging case is a practical storage and charging solution for TT101 transmitters and TT102 receivers. It is ideal for tour operators, museums, training centres, visitor attractions, schools, factories and event teams using larger wireless tour guide systems. Charge up to 40 devices at once This case can charge up to 2 TT101 transmitters and 38 TT102 receivers at
