Model No.: GH-737 Product Origin: China Brand Name: OEM Other Price Terms: EXW, FOB Shenzhen Payment Terms: T/T in advance Supply Ability: 35,000pcs/month Minimum Order: 3,000pcs Delivery Lead Time: 25 days VHF Wireless Stereo Headphone View Larger Picture Detailed Product Description Features: 1) Auto power on/off for transmitter 2) Auto mute function for headphone 3) Cord or cordless use for headphone 4) Headphone has inner headband for comfort Specifications: 1) System: (VHF/RF) 2) Modulation: frequency modulation (FM) 3) Audio mode: mono 4) Operation distance: 25 ~ 30 meters (360°) 5) S/N ratio: >60dB 6) Distortion: <1%THD 7) Frequency response: 30 ~ 20,000Hz 8) Power supply a) Transmitter: DC 12V/120mA b) Receiver: 2 x AAA batteries Inner packing: Dimensions: 24.5 x 27.3 x 10.5cm Outer packing: 20pcs/ctn Carton dimensions: 56.5 x 54.5 x 51.5cm