OA stereo bluetooth headset

Product model BT-H31 NCC certification number CCAJ10LP0110T2 The OA stereo Bluetooth headset continues all the functions of the first generation and the sound quality that everyone is unanimously praised. The only difference is that in addition to the use of 2 AA alkaline batteries, now you can use us as long as you install 2 AA rechargeable batteries. The included MIRCO USB cable is charged directly. This revision is mainly due to environmental considerations, so that everyone does not have to buy alkaline batteries to replace them all the time:) specification: Bluetooth-----3.0+EDR Connection function----NFC Communication protocol-----A2DP, HFP, HSP, AVRCP Speaker unit-----40mm mylar cone Anti-group-----32 ohm Frequency response-20Hz-20kHz Microphone-----omnidirectional Receiving distance-----the longest distance is 10 meters Endurance-Charging: 18 hours / Alkaline: 30 hours Battery-----AAA x2 Charging time-about 3 hours NiMH battery (700mAH) Weight-about 145 grams for a single headset ＊This product is shipped in complete packaging! Origin Taiwan