Features:Delicately disc design， exquisite workmanship and mini size with lighter weight.Multi-function technique， one Bluetooth receiver can connect with two Bluetooth devices.High quality stereo transmission for a better music experience.Reverse control of the music play of connected Bluetooth devices.Safe driving design， it can be used as a Bluetooth car kit which with music play function. Press Key functionVolume ＋: Short press， last song; Long press， Volume plusVolume －: Short press， next song; Long press， Volume declinePower key: Short press， Play / Pause; Double press， redial; Long press， turn on / offRestore factory sittings: long press power key and volume plus key five seconds to restore factory settings(Red and blue light blink twice and with prompt tone)Note: The specific using steps in details， please see the user manual.Model : H - 366 Special Function : Bluetooth Color : Black Package weight: 0.112 kg Product Size (L x W x H) : 4.7 x 4.7 x 1.4 cm / 1.85 x 1.85 x 0.55 inches Package Size (L x W x H) : 14.3 x 9.5 x 3.0 cm / 5.62 x 3.73 x 1.18 inches Package Contents: 1 x H - 366 Multi-point 2 In 1 Wireless Bluetooth 4.0 Hands Free Phone Music Audio Receiver Adapter for Car One Connected to Two devices， 1 x Audio Cable， 1 x Car Charger， 1 x Charging Cable