2-in-1 Bluetooth wireless audio transmitter AUX3.5mm Bluetooth receiver Battery capacity: 200mABluetooth version: 4.2Frequency range: 2.402-2.480GHzEffective distance: about 20 metersSupport: one drag twoProduct size: 6.2*4* 1.1 cmProduct accessories:1* 2-in-1 transceiver1* Charging cable1* Audio cable1* Instruction manual in Chinese and English1* color box packingProduct features:1, classic design, more high-end.2, using Bluetooth 4.2 version, the use of better effect.3, the operation is simple, the ordinary speaker can instantly change into a Bluetooth speaker, more suitable for the vehicle system.4, ultra-long receiving distance, open unimpeded area up to 15 meters.5, super clear call effect, unimpeded voice chat.6, built-in battery, can be charged repeatedly, long battery working time.7, support mobile phones, computers, iPhone, iPad, MID and other digital products with Bluetooth function.