Avantree AS50Q - Add-On Headphones for Ensemble TV Set - Compatible with Batch T24B1 or T24D2 and Later, No Charging Dock Included [ADD-ON HEADPHONES FOR ENSEMBLE] The AS50Q is intended as add-on headphones for the Avantree Ensemble TV watching set, batches T24B1 or T24D2 and later. For all other batches, please get the AS50. [EXTENDED PLAYTIME] A battery life of up to 35 hours provides entertainment for days. [LIGHTWEIGHT & COMFORTABLE] Soft, spacious earpads and an adjustable headband ensure all-day comfort. [NO LIP-SYNC DELAYS] When used with the Ensemble transmitter, enjoy perfectly synced visual & audio with less than 40ms of delay – perfect for TV watching. [LONG RANGE] Maintain a stable signal up to 100ft / 30m from the Ensemble transmitter. Color Black Impedance 32 Ohms Brand Name Avantree Model Name AS50Q Unit Count 1.0 Count Manufacturer Avantree Model Number BTHS-AS50 BuiltIn Media AS50Q Add-On Headphones, Type C Charging Cable Noise Control Passive Noise Cancellation Cable Features Retractable Control Method Remote Earpiece Shape Over-ear cup Headphone Jack No Jack Bluetooth Range 30.48 Meters Frequency Range 20 Hz - 20,000 Hz Number of Items 1 Audio Driver Type Dynamic Driver Compatible Devices Avantree Ensemble TV Set (Batches T24B1 or T24D2 and Later) Additional Features Over Ear Battery Charge Time 2 Hours Wireless Technology Bluetooth Battery Average Life 35 Hours Warranty Description Warranty - 24 months (product registration to cover first 12m return shipment cost) | Extensive Support: Chat, Email, Phone, Online Clinic, Video Tutorials, FAQ and Registration - avantree.com/support Age Range Description Adult Connectivity Technology Wireless Headphones Ear Placement Over Ear Headphone Folding Features Over Ear