An anechoic chamber is a space that can completely absorb sound waves. The room is insulated from external noise, with wedge-shaped fiberglass wool covering the entire ceiling, floor and walls, wh...
Model#R908 Mono Bluetooth Headset Mode:A2DP/AVRCP/HFP Chipset: AB5616A3 V5.2 Frequency: 2.4GHz Transimit Power: Class 2 Music Time: 6.5H Talking Time: 4.5H Standby Time: 40H Charging Time:2H Model...